Materials Day Open House will feature posters that are located throughout the Millennium Science Complex on all four floors. Students' and faculty researchers' posters will be located on the following floors during the morning and afternoon poster sessions:
- Basement
- First Floor
- 3rd Floor Common
001 - 3-MORNING
Symmetry and Memory in the Rheology of Non-Brownian Suspensions
AUTHORS: Surendra Padamata
We study memories in a soft, non-Brownian, neutrally buoyant suspension. This system exhibits directional memory, recalling the initial shear direction due to induced anisotropy in its microstructure (fore-aft asymmetry). Additionally, it possesses‚ amplitude memory, enabling it to learn the strain amplitude of oscillatory shear. Both directional and amplitude memories can be recalled independently. In this work, we explored the interplay and the dynamic relationship between these two memories, examining how they coexist and shape the emergent rheology.
002 - 3-MORNING
Developments in Multifunctional Deep Eutectic Solvent-Based Ionic Gels for Healthcare and Biomaterial Applications
AUTHORS: Jia-Yu Yang, Huanyu Cheng, Cheng-Hsin Chuang
This study develops multifunctional deep eutectic solvent (DES)-based ionic gels with tunable mechanical, conductive, and antimicrobial properties for healthcare, flexible electronics, and emergency wound management. The DES gels offer high transparency, biocompatibility, broad sensing range, and superior hemostatic performance, reducing blood loss and coagulation time by over 50%, highlighting their strong potential for medical and wearable applications.
003 - 3-MORNING
HIGHLY POROUS CARBONS FROM DECAYED FOREST WOODS FOR ENVIRONMENTAL APPLICATIONS
AUTHORS: Marvellous Faluyi, Sibel Irmak
Low-value forest-based biomass presents a valuable opportunity for synthesis of carbon materials for various applications. Forest trees have been experiencing significant damage because of decay fungi. Climate change might contribute to increase this threat. In this study, forest trees subjected to fungi damage were utilized for preparation of porous carbons with potential applications in energy production and water remediation. The optimal pyrolysis conditions were determined to improve material properties with broad industrial and environmental applications.
004 - 3-MORNING
Characterization of Different Types of Steel Slag as a Potential Material for High-Temperature Thermal Energy Storage
AUTHORS: Michael Enemuo, Olumide Ogunmodimu
This study investigates the potential of different types of steel slag as a candidate material for high-temperature thermal energy storage (TES) applications. A comprehensive suite of characterization techniques, including X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Spectroscopy (EDS), X-ray Fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC), was employed to evaluate the slag‚ mineralogical, morphological, elemental, chemical, and thermal properties.
005 - 3-MORNING
Focused Ultrasound-Mediated Sequential Delivery of BMP-2 and VEGF from Layered Hydrogels for Bone Regeneration
AUTHORS: Tyus Yeingst, Angelica Helton, Grace Wood, Dino Ravnic, Julianna Simon, Daniel Hayes
Segmental bone defects, due to trauma, joint replacement, osteomyelitis or cancer resection, are common, difficult clinical problem in orthopedics. The lack of success with current methodologies of vascularized bone transport, bone grafting, distraction osteogenesis, cytokine therapeutics, and stem cell-based therapies are the major technical challenges of segmental bone reconstruction. To address this challenge, this project explores the development of focused ultrasound responsive layered hydrogels for the sequential delivery of angiogenic and osteogenic growth factors for bone regeneration.
006 - 3-MORNING
3D Bioprinted Breast Organoids Uncover Biological Differences Linked to Age and Disease
AUTHORS: Ilayda Namli, Joseph Christakiran Moses, Medine Dogan Sarikaya, Ibrahim T. Ozbolat
Extracellular vesicles (EVs) mediate cancer progression but are challenging to isolate with tumor-specific precision. We used 3D bioprinting to create patient-derived breast cancer organoids with uniform architecture for controlled EV isolation. Comparing organoids from young and elderly patients revealed age-related differences in EV composition and effects on cancer cells and fibroblasts. This model provides a physiologically relevant, high-throughput platform to study tumor–microenvironment interactions and support biomarker discovery.
007 - 3-MORNING
Dielectric polymers exhibit high energy density and giant cross-coupling effects
AUTHORS: Li Li, Wenyi Zhu, Guanchun Rui, Q.M. Zhang
We report molecularly engineered relaxor ferroelectric polymers and nanocomposites exhibiting unprecedented electromechanical and dielectric performance. Semi-crystalline/amorphous polymer blends achieve high K, breakdown strength, and scalability for advanced electroactive devices. Introducing targeted defects in P(VDF-TrFE-R) yields k‚ÇÉ‚ÇÉ > 80% and d‚ÇÉ‚ÇÉ > 1000 pm/V under low DC bias. High-entropy tetrapolymers show record electrocaloric and electrostrictive responses, enabling self-actuated cooling.
008 - 3-MORNING
Multi-scale Computational Modeling of Molten FLiNaK Salt Corrosion in NiCr Alloy
AUTHORS: Hamdy Arkoub, Daniel Flynn, Swarit Dwivedi, Jia-Hong Ke, Adri van Duin, Miaomiao Jin
Understanding molten salt corrosion is crucial for advanced energy systems. This study combines Density Functional Theory (DFT) and ReaxFF Molecular Dynamics (RMD) to examine NiCr alloy corrosion in molten FLiNaK. DFT reveals the role of interfacial chemistry in fluorine adsorption and Cr dissolution. Using a DFT-derived force field, RMD explores how temperature, composition, grain orientation, and stress impact corrosion, revealing results that align with experiments. This framework aids in designing corrosion-resistant materials for molten salt environments.
009 - 3-MORNING
Photo-activated Combinatorial microRNA Delivery via Core-Shell-Shell Nanoparticles Suppresses Head and Neck Cancer Tumors
AUTHORS: Angelica M. Helton*, Tyus J. Yeingst, Dylan P. Kearse, Lindsay P. Stone, Neerav Goyal, and Daniel J. Hayes
GLOBOCAN estimates that by 2030 the incidence rate of Head and Neck Cancer (HNC) will increase by 30%, specifically in young populations. Our lab has developed photo-activated, core-shell-shell nanoparticles (CSS NP) that delivers microRNA with spatiotemporal control. The microRNA are linked to the NPs via a reversible Diels-Alder (DA) click-chemistry reaction. Upon external stimulation with near-infrared light at 850 nm, the DA linker undergoes a retrograde reaction due to plasmonic activity. In vivo results showed ~95% tumor knockdown from a single dose within 48 hours of administration.
010 - 3-MORNING
Effect of Soluble Corrosion Products on Electrical Double Layer in LiCl-KCl Molten Salts
AUTHORS:
To develop effective strategies for corrosion mitigation, understanding the interfacial structures and properties such as specific ion adsorption and electrical double layer capacitance are crucial. Using CV and EIS, we systematically studied the interfaces on various model electrodes with molten salts electrolytes with the addition of corrosion products. The addition of corrosion products increases the electrical double layer capacitance. Such relation was successfully used to monitor the corrosion of stainless steel in LiCl-KCl molten salts and the result was confirmed by Raman and XPS.
011 - 3-MORNING
Nucleation Behavior of Pitting and Evolution of Stripping on Lithium Metal Batteries
AUTHORS: Hanrui Zhang, Feifei Shi
The stripping reaction of Li will greatly impact the cyclability and safety of Li metal batteries. However, lithium pits' nucleation and growth, the origin of uneven stripping, are still poorly understood. Here, we elucidate the dependence of pit size and density on current density and overpotential, which is aligned with classical nucleation theory. After statistical quantification, we validate that the overpotential is inversely related to the pit radius and exponentially related to the rate of nucleation, which can help us predict the evolution of Li pitting process during the cycling.
012 - 3-MORNING
Techno-Economic and Environmental Assessment of AI-Enabled Sorting of Consumer Electronic Batteries in the U.S.
AUTHORS: Dominic Aboagye, Hariteja Nandimandalam, Gamini P. Mendis*
The growth of consumer electronics has led to rising volumes of spent batteries, posing environmental risks but also opportunities for material recovery. This study offers a preliminary techno-economic analysis (TEA) and life cycle assessment (LCA) of an AI-enabled sorting system for mixed consumer batteries in the U.S. Scenarios considered battery chemistries and collection practices. Results show AI sorting improves cost efficiency and environmental performance, influenced by electricity sourcing, while avoiding hazardous waste treatment.
013 - 3-MORNING
AUTHORS: Yuxi Zhang, Sreekant Anil, Sai Venkata Gayathri, Andrew Balog, Hadas Sternlicht, Nasim Alem
Alem Group: An Adventurous Journey of Exploring Atoms in Nanostructures
In Professor Nasim Alem research group at Penn State, our work focuses on using transmission electron microscopy (TEM) as a tool to understand material behavior and properties in unique functional materials. We study atomic structure and defects, connecting local structural deformations to changes in electronic, chemical, ferroelectric, and other emergent properties. We also apply spectroscopic tools within the TEM to further understand local variations in chemistry and electronic structure.
014 - 3-MORNING
Electric-Fish Inspired Ultra-thin Hydrogel Electrocytes Achieve High Power Density and Environmental Robustness
AUTHORS: Wonbae Lee, Dor Tillinger, Haley M. Tholen, Derek M. Hall, Joseph S. Najem
Electric-fish-inspired hydrogel power sources are a new approach to powering soft electronics. By stacking hydrogels with various salt concentrations and selectivity, they mimic the ion-driven energy generation of electrocytes seen in electric fish. These complaint, biocompatible, and biodegradable systems are made using a precise spin-coating method, producing ultra-thin units (106.1 μm) that stay hydrated, resist freezing, and deliver high instantaneous power output (44.0 kW m−3). With integrated conductive hydrogel electrodes, they offer a scalable path for wearable and implantable devices.
001 - 1-MORNING
Thermosensitive Patchy Domain in Mixed-Shell Micelles Enables Tunable Hydrogel Properties
AUTHORS: Binru Han, Shota Fujii, Andre J. van der Vlies, Masoud Ghasemi, Urara Hasegawa
Thermosensitive injectable hydrogels undergo sol gel transition at body temperature and hold promise for biomedical use. Conventional systems rely on isotropic micellar aggregation, often yielding weak and uncontrollable networks. Here, we present mixed-shell micelles with multiple patchy thermosensitive domains that assemble into stable networks at 37 C. Structural analysis by cryo-EM revealed the patchy micelles formation. Mechanical properties, characterized by AFM and rheology, showed tunable storage modulus, highlighting the potential of patchy micelle design for hydrogels with control.
002 - 1-MORNING
Enabling formwork-free 3D printing of spanning roof structures at the construction scale - Using multi-directional slicing to decrease the overhang angle
AUTHORS: Nusrat Tabassum, Prof. José Pinto Duarte, Prof. Ali Memari, Prof. Orsolya Géspér, Prof. Sven Bilen, Prof. Nathan Brown, Dr. Gonzalo Duarte
This study addresses the global housing crisis by advancing 3D concrete printing (3DCP) for roof structures. While walls and columns are achievable, arches and vaults face overhanging limits of 60° with corbelling or horizontal slicing. By integrating corbelling, radial, and inclined slicing, alongside simulations, tests, and optimization, the research reduces reliance on formwork, cutting costs, waste, and CO₂ emissions. Outcomes include algorithm-based design systems and toolpath strategies that expand structural and architectural possibilities for sustainable, affordable housing.
003 - 1-MORNING
Counterion condensation, ion pairing and scattering properties of semiflexible polyelectrolytes with mono- and di-valentions
AUTHORS: Elmira Abbasi GharehTapeh, Takaichi Watanabe, Ferenc Horkay, Can Hou, Carlos G. Lopez, Max Hohenschutz
Polyelectrolytes are polymers with charged groups such as DNA, RNA, proteins, or synthetic systems like polyacrylic acid, balanced by oppositely charged counterions that influence their structure. We examine carboxymethyl cellulose (CMC) in salt-free solutions with mono (Na⁺) and divalent (Mg²⁺) counterions. The study aims to advance understanding of counterion condensation and its role in polyelectrolyte behavior. Scattering shows NaCMC retains local order, while MgCMC displays weaker repulsion and loss of structure. Conductivity confirms MgCMC has about half the effective charge of NaCMC.
004 - 1-MORNING
Volume-Controlled Motion of a Contact Line is a Memory: A Globally Frustrated Process
AUTHORS: Ashbell Abraham, Nathan Keim
We study the irregular motion of a water-air-glass contact line of a drop placed between two glass plates. We drive the contact line slowly adding and removing water with a constant volume amplitude V_T . After many cycles, the contact line reaches a steady state in which it returns to the same shape at the end of each cycle. This system's steady state is a memory: applying amplitudes less than V_T changes the shape, but even one cycle at amplitude V_T recovers the steady-state shape. Our study sheds light on the origins of reversibility and memory in a system where neither is guaranteed.
005 - 1-MORNING
Improving U-Net Confidence on TEM Image Data with L2-Regularization, Transfer Learning, and Deep Fine-Tuning
AUTHORS: Aiden Ochoa
Manual TEM image analysis is time-consuming, subject to human bias, and cannot scale with a growing data volume. U-Net has been the workhorse for high-throughput image processing but suffers when applied to TEM workflows due to the complexity of electron microscopy contrast mechanisms and human interpretation. We propose an improved U-Net, taking advantage of a large pre-trained backbone and transfer learning, which displays exceptional self-confidence in its prediction abilities. We show that it can even outperform humans for a case study involving grain detection in nanocrystalline UO2.
006 - 1-MORNING
Frequency-dependent response of reversible rearrangements in an amorphous material
AUTHORS: Zhicheng Wang, Nathan Keim
In an amorphous solid, applied shear can cause localized rearrangements of particles. We investigate their dynamics at finite strain rates. We perform experiments on a monolayer of colloidal particles at a decane-water interface, driving it at increasing frequencies while we observe the particle trajectories. We find that individual rearrangements have wide distributions of switching timescales. Furthermore, these quantities can depend on driving frequency; rearrangements can even be skipped. We show that a generic model with linear damping reproduces the frequency-dependent behavior.
007 - 1-MORNING
Sintering Kinetics of Modified Lead Titanate Compositions for Templated Grain Growth of Textured Piezoelectric Ceramics
AUTHORS: Casey L. Zhang, Beecher H. Watson III, Mark A. Fanton, Richard J. Meyer Jr., Susan Trolier-McKinstry
This work explores templated grain growth of the [001] textured modified lead titanate ceramic material system as a candidate for high-voltage coefficient sensor applications. It was found that randomly oriented lead titanate ceramics densified above 1150°C, and with Zr modification, grain growth during sintering increases. The influences of microstructure and preferred crystallographic orientation on the longitudinal (g33) and transverse (g31) voltage sensitivity were explored, with gH values for textured modified lead titanate ceramics reaching 54 × 10-3 V m/N.
008 - 1-MORNING
Peanut Oil-derived Pyrolytic Carbon as a High-Performance Anode Material for Li-ion Batteries   
AUTHORS: Bindu Antil, Ramakrishnan Rajagopalan and Randy Vander Wal,
This study investigates pyrolytic graphitic carbon derived from peanut oil as a sustainable, low-cost anode for lithium-ion batteries. In-situ CVD-mediated carbonization produced highly ordered graphitic domains with low d002 spacing and long-range layers, confirmed by XRD, Raman, and HRTEM. Electrochemical tests showed high capacity, excellent rate performance, and long-term cycling stability, surpassing graphite. Enhanced conductivity, porosity, and structural robustness underpin its superior performance, highlighting biomass carbons as scalable anode materials.
009 - 1-MORNING
Harnessing nonlinear optical properties of polymer grafted lithium niobate nanoparticles in polymer matrixes
AUTHORS: Mykyta Dementyev, Robert J. Hickey III
Nanocomposite systems combining inorganic crystals and processable polymers offer unique optical and tunable properties for telecommunications, computing, and medicine. Yet, their nonlinear optical (NLO) behavior remains understudied, especially the nanoscale effects of incorporated crystals. We propose synthesizing lithium niobate nanocrystals with polymer grafting in a PMMA matrix host. Enhancing the degree of particle dispersion improves macroscopic NLO response, enabling advances in miniaturized optical and electronic devices.
010 - 1-MORNING
Gallium Oxide Growth, Processing, and Characterization for High Power Devices
AUTHORS: Robert Lavelle, William Everson, Daniel Erdely, Luke Lyle, Benjamin Dutton, Lance Gonzalez, Scott Pistner, Mason Cleff, Chris Bingnear, Randal Cavalero, Connor Beakes, Samuel Hallacher, Joan Redwing, David Snyder
Gallium oxide (β-Ga2O3) has emerged as a promising ultrawide bandgap semiconductor for high-power electronic devices. One of the primary advantages of utilizing β-Ga2O3 materials is the ability to grow large crystals from a melt. This poster will highlight characterization techniques being used to develop a process for manufacturing β-Ga2O3 crystals into epi-ready substrates. These techniques include microscopy, profilometry, and high-resolution x-ray diffraction (HRXRD). This characterization feedback is important to facilitate bulk crystal growth and substrate processing improvements.
011 - 1-MORNING
Tuning ZSM-5 through Desilication for Catalytic Co-Pyrolysis of PP/Flame Retardant
AUTHORS: Do Hyun Lee, Hilal Ezgi Toraman
Polypropylene (PP) is commonly compounded with flame retardants (FR) to improve fire resistance by inhibiting ignition. This study examined how desilication affects the ZSM-5 catalyst used in the catalytic co-pyrolysis of PP and FR. Desilication increased the mesopore volume of HZSM-5 and enabled a 22°C reduction in the maximum degradation temperature (at 10°C/min) compared to parent ZSM-5, while preserving mesoporosity and external surface area. These results indicated that desilicated catalysts offer milder operation conditions for processing FR-containing PP in catalytic pyrolysis.
012 - 1-MORNING
Machine Learning Techniques for Process Modeling and Characterization of Thin Film Chalcogenides
AUTHORS: Isaiah A. Moses and Wesley F. Reinhart
The traditional approach to materials synthesis relies on expert intuition and manual processing, resulting in lengthy trial-and-error cycles. In contrast, data-driven methods improve materials discovery by optimizing processes. Our research focuses on process modeling and automated characterizations needed in autonomous synthesis platforms. We use machine learning techniques—like representation learning, computer vision, and generative models—applied to thin film chalcogenides such as MoS2, GaSe, and SnSe. This demonstrates their potential to accelerate discovery for next-generation devices.
013- 1-MORNING
Direct hydrothermal synthesis of M1-type MoVBiOx materials for ethane oxidative dehydrogenation
AUTHORS: Brendan P. Troesch, Sonali B. Thanthrige, Ke Wang, Prashant Deshlahra, Gregory Novotny, Gina Noh, James M. Hodges
M1-type mixed-metal oxides, represented by the formula MoVTeOx, are promising candidates for the ethane oxydehydrogenation (ODH) reaction. Notably, the Te(4+) in M1 materials is prone to reduction to Te(0), which then sublimes from M1 and causes irreversible catalyst deactivation through structural breakdown. Replacement of Te with Bi can mitigate this due to Bi’s lower reduction potential and higher enthalpy of vaporization, yet such efforts have hardly been realized. Herein we report a facile, one-pot synthesis of M1 materials containing Bi with high activity and selectivity for ethane ODH.
014 - 1-MORNING
High Resolution Penn State NMR Facility and it's capabilities
AUTHORS: Christy George and Tapas K Mal
The nuclear magnetic resonance spectroscopy (NMR) facility, a core university resource, supports all Penn State campuses and the surrounding community, including industry partners. It houses ten high-resolution instruments (300 - 850 MHz) equipped with high-sensitivity cryoprobes and iProbes, solid state and diffusion probes, and HTS changers for a wide range of applications: 1) metabolomics mixture; 2) small molecules; 3) biomolecules; 4) hard and soft materials including tissues and organs. We also offer comprehensive services, including training, expertise, consultation, and collaboration.
015 - 1-MORNING
Synthesis of ACuHfQ3 (A = alkali; Q = chalcogen) Semiconductors and Structural Rearrangements in Their Mixed-Anion Compositions
AUTHORS: Ayat Tassanov, Huiju Lee, Daniel W. Spainhour, Pedro R. Trinidad-Pérez, Yi Xia, James M. Hodges
Ten new ACuHfQ₃ (A = Na, K, Rb, Cs; Q = S, Se, Te) chalcogenides were synthesized and characterized by single-crystal XRD. These layered materials contain [CuHfQ₃]⁻ slabs separated by A⁺ cations and form three polymorphs defined by HfQ₆ octahedra and CuQ₄ tetrahedra. Optical and computational studies show OTOT structures (Cmcm, Pnma) are direct-gap, while OOTT types (Pnma, P2₁/m) are indirect-gap semiconductors. Mixed-anion variants exhibit site-selective ordering, guided by Bader charge and bond valence analysis.
016 - 1-MORNING
Ozone-Activated Biochar Lightweight Aggregate for MOSC-Based 3D-Printable Concrete
AUTHORS: Hanbin Cheng, Aleksandra Radliñska
This work evaluates ozone (O‚ÇÉ) pretreatment of biochar used as a lightweight aggregate (LWA) to tailor the fresh and hardened performance of magnesium-oxysulfate cement (MOSC) mixtures for extrusion-based 3D concrete printing (3DPC). Biochar was exposed to O‚ÇÉ prior to batching and compared with an untreated-biochar control at equal mixture proportions. Isothermal calorimetry quantified changes in hydration kinetics; rheological measurements tracked static yield stress development relevant to buildability; interfacial transition zone (ITZ) characteristics were assessed to interpret bonding; the
017 - 1-MORNING
Multiscale ReaxFF MD and CFD framework for understanding Silicon Carbide (SiC) single crystal growth
AUTHORS: Ga-Un Jeong, Riasat Islam, Anirban Phukan, Yun Kyung Shin, Yuan Xuan, and Adri C. T. van Duin
The Physical Vapor Transport method is a well-established process for producing bulk SiC single crystals, but its chemical processes remain poorly understood. We developed a multiscale framework combining ReaxFF molecular dynamics (MD) and computational fluid dynamics (CFD). MD simulations provided chemical models of sublimation and deposition kinetics, incorporated into CFD to predict species distributions and growth parameters. We are also developing ReaxFF force fields for porous carbon membranes, revealing site-specific etching mechanisms, species-dependent reactivity, and Ce dopant effect
018 - 1-MORNING
CHEMICAL GRADIENT-GUIDED ENZYME CHEMOTAXIS: FROM MICROSCALE CONTROL TO MACROSCALE APPLICATIONS
AUTHORS: Aditya Sapre, Ayusman Sen
My PhD research explored how chemical gradients and enzyme catalysis drive motion across scales, from enzyme-coated particles to centimeter-sized polymer sheets. Using hydrogels, microchannels, and lipid bilayers, I demonstrated chemotaxis, cooperative migration, and catalysis-induced flows in membranes. At larger scales, enzyme-coated sheets showed programmable locomotion, while emulsions and ion-driven flows revealed new self-organization modes. These studies advance understanding of active matter and open pathways for targeted delivery, biosensing, biomimetic systems, and soft robotics.
019 - 1-MORNING
Interfacial Phenomena Driving Dynamic Emulsions and Shape-Morphing Droplets
AUTHORS: Sanjana Krishna Mani and Ayusman Sen
Emulsions are soft matter systems with applications in coatings, pharmaceuticals, personal care, etc. They are versatile models to study life-like behaviors through tunable interfacial properties. We investigate oil-in-water emulsions of haloaromatic droplets in non-ionic surfactants (e.g., Triton X-100), which display oscillation, deformation, and propulsion. These dynamic behaviors, driven by interfacial instabilities and physicochemical gradients, provide insights into non-equilibrium processes and open pathways for designing adaptive, responsive materials with emergent functionalities.
020 - 1-MORNING
Understanding the effect of minor alloying elements on helium bubble formation in ferritic-martensitic steels
AUTHORS: Xingyu Liu, Jonathan Poplawsky, Yongqiang Wang, Xinyuan Xu, Xiang (Frank) Chen, Xing Wang
Ferritic-martensitic steels are key candidates for advanced reactors. Reduced-activation steels like F82H replace Ni/Mo with W, but the effect on helium bubbles remains unclear. We compared T91 and F82H irradiated with 100–200 keV He ions to 0.5 dpa and 9000 appm at 500 °C. F82H showed larger, fewer bubbles, while T91 had smaller, denser ones. Ni-Mn-Si clusters formed near T91 bubbles, versus Mn-Si clusters in F82H. Elemental segregation reflects dominated diffusion mechanisms: vacancy-driven near bubbles. More prominent Ni-Si-Mn clustering near helium bubbles in T91 suppressed bubble growth.
021 - 1-MORNING
Sensing chaotic vortex dynamics in Fe3O4 nanocubes with spin defect qubits in nanodiamonds
AUTHORS: Jyotirmay Dwivedi, Aaron McDonnell, Jeffrey Rable, Arthur Enriquez, Joseph Veglak, Raymond E. Schaak, Nitin Samarth
Magnetic nanoparticles are promising candidates for biocompatible, nanoscale heaters in cancer therapy through magnetic hyperthermia, where oscillating magnetic fields (>100 kHz) trigger heat generation via thermal and magnetic relaxation processes [1]. While most studies have focused on single-domain particles, larger nanoparticles offer an underexplored mechanism: vortex-driven heating at lower, clinically safer magnetic fields [2]. In this work, we investigate Fe₃O₄ nanocubes (80–100 nm) using micromagnetic simulations, which reveal that clusters in the 0.5–2 μm range support non-uniform vortex dynamics, including chaotic modes. To probe these excitations experimentally, we employ nitrogen-vacancy (NV) spin defect qubits in nanodiamonds, which serve as sensitive detectors of magnetization dynamics as well as mK-scale quantum thermometers [3-5]. These results are the first step in correlating the heat generation capability of multi-domain magnetic nanoparticle clusters via vortex motion that can open new pathways for cancer treatment using magnetic hyperthermia.
022 - 1-MORNING
High Speed Biaxial Piezoelectric MEMS Micromirror with Varifocal Tunability
AUTHORS: Hunter Shillingburg and Daniel Lopez
The ability to manipulate light in three-dimensional
space has been of growing interest for fields such as: 1. Biomedical imaging and microscopy; 2. Augmented/virtual reality; 3. Laser micromachining. Many of these existing systems are composed of several unique optical elements2, resulting in bulky and expensive systems with complex assembly. Here we show the current fastest 2D MEMS scanner with built in focus tuning that attains fast tilting speeds and >100kHz mirror curvature changing speed, enabling 3D beam scanning with one device.
001 - B-MORNING
Colloidal synthetic pathways towards complex multinary metal chalcogenides
AUTHORS: Rahul Ramachandran Manikkoth, Julie L Fenton
Complex multinary metal chalcogenides provide rich structural diversity and compositional flexibility however, are challenging to synthesize. Colloidal synthesis is a versatile approach to access such structures, as it provides various tunable synthetic parameters at relatively low temperatures. Herein, we demonstrate the synthesis of structurally diverse multinary metal chalcogenides using intermetallic nanoparticle and metal coordination complex as metal precursors. Colloidal hot-injection and heat-up synthesis were used to access ternary and intergrowth quaternary structures respectively.
002 - B-MORNING
MycoTile Acoustics: Computational Design and Optimization of Mycelium-based Acoustic Tiles
AUTHORS: Aisa Shams, Alale Mohseni, Nathan Brown, Benay Gérsoy
This study investigates mycelium-based composites (MBC) as sustainable biomaterials for architectural acoustics. A parametric design of pentagonal tiles with varied heights and projections was simulated in Pachyderm to evaluate reverberation time (RT). Design Space Exploration optimized geometry to reduce material use while maintaining RT between 0.4–1.0 s for speech-focused spaces. A bio-fabricated MBC prototype demonstrates a viable approach to combining bio-fabrication, acoustic performance, and material efficiency.
003 - B-MORNING
Investigating Reaction Kinetics In Structured Solvents
AUTHORS: Rayan Bhattacharya (1st Author), Lauren Zarzar (Corresponding Author)
Hydrotropes are small amphiphilic molecules which form nanostructures in solutions beyond a certain concentration. These nanostructures have been found to affect reaction rates in water, mirroring the chemical environment in prebiotic earth, thus offering insight into prebiotic chemistry. This work utilizes hydrotropes with different chemical moieties to investigate structures of varying nature and its tendency to accelerate/decelerate reactions in water. This work also aims to mechanistically explain the effect of these structures on reaction kinetics.
004 - B-MORNING
Field-Directed Additive Manufacturing of Hierarchically Structured Responsive Composites
AUTHORS: Mohammad Hossein Zamani, Christian Bergen, Md Abdur Rahman Bin Abdus Salam, Kelly Brownstead, Zoubeida Ounaies
Our research advances multifunctional materials whose properties emerge from hierarchical structuring. We design, process, and characterize systems where particles and fillers are tailored across scales. Additive manufacturing and external fields control dispersion, orientation, and anisotropy, linking microstructure with macroscale performance. Two thrusts guide us:(i) rheology-guided formulation of magnetoactive and shape-memory inks, and (ii) topology optimization and 3D printing of magnetoelastic actuators. These strategies enable adaptive composites for biomedical, aerospace, and robotics.
005 - B-MORNING
3D Printing OF FUNCTIONALITY GRADED CONCRETE FOR BUILDING CONSTRUCTION
AUTHORS: Amir Ghasemi, Jose Pinto Durte
This research develops a parametric framework for robotic 3D printing of concrete-cork composite dome structures, reducing material waste by 30%. A dome geometry decomposed into four radial sections with three vertical zones each, enabling control of printing parameters.
Then we used finite element analysis for stress-driven material optimization, allocating cork-enhanced concrete in low-stress regions and high-strength concrete in high-load areas. Buildability assessment validates structural integrity through failure prevention analysis.
006 - B-MORNING
Synergistic Role of Long Chains and Shear on the Crystallization of Poly(ethylene oxide) (PEO)
AUTHORS: Arshiya Bhadu, Elijah J. Mumau, Nora C. Lee, Lilly Khalkho, Kirt A. Page, Xiaoshi Zhang, Alicyn M. Rhoades and Ralph H. Colby
We applied various levels of shear on two low molecular weight (MW) poly(ethylene oxide)s (PEOs)
and their blends with 0.5-9.5 wt% high MW PEO to investigate the impact of shear and long chains on the crystallization of PEO. The nucleation density of crystals increases for the low MW PEOs by applying shear or adding long chains. Upon combining shear and long chains, a significantly larger increase in nucleation density occurs. A strong isotropic to anisotropic morphological transition occurs only at high levels of shear in the blends with long chains.
007 - B-MORNING
Non-Equilibrium Processing of Ceramics
AUTHORS: Sevag Momjian, Julian Fanghanel, Ju-Hyeon Lee, Hiroshi Nishiyama, Michael Mervosh, Maria Cristina Navarrete, Emma Grace Eleson, Clive A. Randall
The processing of ceramic powders into monoliths with structural robustness is known as sintering. To achieve necessary performance high temperatures and long sintering times are required. Thus, control over the final microstructure is more difficult. However, non-equilibrium ceramic processing techniques permit the consolidation of these powders while maintaining control over grain size, composition, etc. Here we demonstrate the use of non-equilibrium ceramic processing (Cold Sintering, Fast Firing, etc.) to achieve novel and superior functionality of ceramic devices from powder to monolith.
008 - B-MORNING
Microwave-Assisted Chemical Recycling of Polyethylene Terephthalate (PET) via HZSM-5 Catalyzed Hydrolysis
AUTHORS: Emir Salmanzadeh, J.V. Jayarama Krishna, Phillip E. Savage, Hilal Ezgi Toraman
PET is mainly used in products with a short lifespan, making its recycling crucial. PET can be recycled into its monomers via hydrolysis. Microwave heating is an energy-efficient alternative enabling direct and uniform heating. HZSM-5 with SiO2/Al2O3 = 80 was found to be the most active for PET hydrolysis, as monomer yields increased from 8% to 15% at 245 °C for 30 minutes and from 29% to 65% at 260 °C for 30 minutes, compared to the uncatalyzed experiments. The presence of zeolites resulted in faster microwave heating as heat-up times were reduced by 40% compared to the uncatalyzed runs.
009 - B-MORNING
Quantum sensing of pressure using nitrogen-vacancy centers in diamond
AUTHORS: Ricardo C. Heitzer, Cristobal I. Vallejos, and Jorge O. Sofo
Nitrogen-vacancy centers are point defects in diamonds that can be used as single spin sensors for electromagnetic fields, temperatures, and pressures in the environment. Pressure sensing can be achieved by optically detected magnetic resonance (ODMR), which is the reduction of fluorescence intensity under electron spin resonance. An external pressure on the diamond has two effects: a shift on the resonance line, and a reduction of the ODMR contrast. In this work, we simulate these effects using open quantum system dynamics, providing a theoretical analysis in terms of the relaxation rates.
010 - B-MORNING
Contacts to Group III Nitride Semiconductors
AUTHORS: Nate Banner, Justin Chiu, Thom Domer, and Suzanne Mohney
This poster will showcase research by our group on electrical contacts to gallium nitride and other group III nitride semiconductors, including studies of Schottky diodes and ohmic contacts.
011 - B-MORNING
The High Field MRI Facility at Penn State
AUTHORS: Sean Gullette and Thomas Neuberger
Magnetic Resonance Imaging (MRI) is a powerful, non-invasive technique that has seen growing adoption in the materials research community. This momentum stems from recent advances in hardware, innovative acquisition and reconstruction strategies, and a broader awareness of MRI’s potential beyond medical diagnostics. Current applications range from characterizing medical implants (e.g., scaffolds, stents, bioglass) and visualizing hydrogels, to monitoring drying processes in materials like concrete, measuring flow and pH, and tracking diffusion phenomena involving water, lithium, and sodium.
012 - B-MORNING
Synthesis of Large-area Ultra-thin Mo2C Films Using Chemical Vapor Deposition
AUTHORS: Chinmay Mundayadan Chandroth, Conghang Qu, David E. Sanchez, Alexander J. Sredenschek, Danilo. A. Nagaoka, Mauricio Terrones
Transition metal carbides (TMCs) can be synthesized as ultrathin nanoplatelets (less than 50 nm in thickness), expanding the scope of 2D materials. Among ultrathin TMCs, molybdenum carbide (Mo‚ÇÇC) has garnered significant interest due to its potential applications in catalysis and energy storage. However, a key challenge in the application of Mo2C is the synthesis of large-area films, which necessitates the quantification of the‚ÄØlateral film coverage‚ÄØas a function of growth parameters. In this work, we employ a liquid copper (Cu) melt to facilitate molybdenum (Mo) diffusion to the surface.
013 - B-MORNING
Parametric study of ethylene vinyl alcohol pyrolysis using comprehensive two-dimensional gas chromatography
AUTHORS: Praneetha Buddha, Dr. Hilal Ezgi Toraman
Global annual plastic waste exceeds 359 million metric tons, with only 9% recycled. Ethylene vinyl alcohol (EvOH), used in food packaging, poses recycling challenges due to its complex structure and coextrusion with polyethylene. Pyrolysis offers a promising solution, converting polymers into oil. The EvOH pyrolysis reactions were studied using a Box Behnken Design and Principal Component analysis to analyze the effects of temperature, carrier gas flow, and sample size. Results indicate significant effects due to temperature with yields of 31.43±1.42 wt% at 400°C to 53.04±0.98 wt% at 500°C.
014 - B-MORNING
Flexural Strength of Glass with PMMA-Silica Nanoparticle Composite Coatings
AUTHORS: Shaylee Becerra and John Mauro
Poly(methyl methacrylate) (PMMA) silica nanoparticle composite coatings are applied to glass for strength improvement. The coatings are applied to glass slides via the dip coating method and the strength was evaluated using 4-point bend flexural tests. Five different coatings are tested with different weight percentages of nanoparticles ranging from 0-2wt%. These coatings are beneficial due to the biocompatibility of PMMA and the favorable mechanical properties of silica nanoparticles. In addition, these coatings can be processed via solution mixing in a one pot simple method.
015- B-MORNING
Molecular Beam Epitaxy (MBE) Growth and Characterization of III-V Semiconductors
AUTHORS: Gokul Nanda Gopakumar, Molly Rose McDonough, Stephanie Law
III-V semiconductors have been used for decades in electronics, photonics, spintronics, and photovoltaics. Molecular Beam Epitaxy (MBE) is an ultrahigh vacuum technique used to synthesize these thin film materials with high purity and a low number of defects. Current research topics include the synthesis of materials for infrared imaging and sensing applications. High efficiency emitters for this can be created using InSb quantum dots in an InAs matrix. We also present efforts in fabricating rolled-up semiconductor metamaterials from a strained bilayer that can act as a super-resolution lens.
016 - B-MORNING
First-principles calculations of nonradiative carrier capture rates for defects in irradiated GaN
AUTHORS: Alexander Hauck, Dr. Blair Tuttle, & Dr. Miaomiao Jin
The wide-bandgap semiconductor gallium nitride has been investigated as a radiation-resistant alternative to Si-based electronic devices for spacecraft applications. As non-ionizing energy loss processes from radiation interact with the semiconductor material, defects are created that introduce new energy levels into the electronic bandgap. These levels can serve as trap sites or recombination sites for the charge carriers responsible for current transport. Understanding the nonradiative carrier capture rates is a critical piece of predicting how these defects impact device performance.
017 - B-MORNING
Bimodal Nucleation and Growth of Pt–Al Intermetallic in Al Nanopillars
AUTHORS: Yingxin Zhu, Yang Yang
Precipitation strengthening is key in aluminum alloys, exemplified by Al–Cu where θ′ phases block dislocations. Al–Pt is promising: Cu and Pt share close-packed structures, and Al₂Pt has a much higher bulk modulus. Using in-situ TEM heating of Pt-coated Al nanopillars, we identify a new Pt–Al phase with notable expansion. Precipitates show a bimodal size distribution from surface and defect diffusion, decorating pillar surfaces while geometry remains intact. These results highlight Al–Pt’s potential for nanoscale strengthening.
018 - B-MORNING
UV-Cured PVDF-HFP Gel Polymer Electrolytes with Tunable Crosslinking for Quasi-Solid-State Batteries
AUTHORS: Linrui Duan
Gel polymer electrolytes (GPEs) combine liquid-like ion transport with polymer stability, making them attractive for quasi-solid-state batteries. We developed UV-curable PVDF-HFP GPEs with PEGMA/PEGDA crosslinking and studied curing-time effects. The 120s cured membrane delivered 1.1 mS cm⁻¹ conductivity, tLi⁺ = 0.50, and a 4.38 V stability window. It enabled dendrite-free cycling for 800+ hours and strong performance in both half and full cells. Results highlight the fundamental role of crosslinking in tuning morphology, uptake, and ion transport for high-performance quasi-solid-state Battery
019 - B-MORNING
Additive Manufacturing of Electronics and Ceramics at ARL Electronic Materials and Devices Department (EMDD)
AUTHORS: Joshua Fox, Luke Lyle, Matthew Krohn
Additive manufacturing of electronics and ceramics has been gaining interest over the last decade because of its capability to rapidly prototype devices with complex geometries, reduce manufacturing costs, and directly produce components at the point of need. These unique advantages can overcome issues facing traditional integrated circuit technology and ceramics processing.
020 - B-MORNING
Probing Interfaces and Bulk Crystallites with Nonlinear Vibrational Spectroscopy
AUTHORS: Jihyeong Ryu, Mason Link, Juseok Choi, Yiwen Guo, Mehmet Arda Ozay, Seong Kim
Second order non-linear optics probes non-centrosymmetric molecular features and can characterize 2D interfaces and 3D bulk crystals dispersed in amorphous matrices. Interfacial analysis can characterize interfacial chain conformation, while bulk crystalline sensitivity provides insight into the chain orientation, size, and concentration of crystalline domains. Given the complexity of nonlinear processes in this study, we incorporate numerical simulation to compare with experimental data and extract molecular and structural information from polymer thin films, biomaterials, and glass-ceramics.
021 - B-MORNING
Ultrafast Pulsed Laser in Transparent Solids
AUTHORS: Meixu Bao, G. Lavallee, W. Zhu, C. Eichfeld, D. Lopez
Special Features of Transparent Solids: 1) Access to higher plasma density, 2) Undergo permanent structural modifications, 3) Allow high-precision micro/nano-processing. Use ultrafast pulsed laser to pattern micro-structures inside transparent materials such as glass packaging, 3D heterogeneous integration.
001 - 3-AFTERNOON
Soft Biomolecular Networks with Interconnected Nodes Enable Higher-Order Reservoir Computing
AUTHORS: Nicholas Armendarez, Ahmed Mohamed, Joseph Najem
Analog reservoir computing offers energy-efficient processing but uncoupled memristor arrays are limited to first-order dynamics. We present coupled biomolecular memristor networks built from microscale droplets in a hexagonal lattice, linked by biomembranes with voltage-gated Alm peptides. Each droplet couples to up to six memristors, enabling rich nonlinear dynamics. We experimentally validated our model and achieved major error reductions on NARMA2 (0.035) and NARMA10 (0.33), plus accurate Lorenz63 prediction. This establishes a low-power, biocompatible platform for neuromorphic computing.
002 - 3-AFTERNOON
LLM- and Fixed-Attention-Guided Design of Metasurfaces
AUTHORS: Huanshu Zhang, Lei Kang, Sawyer D. Campbell, and Douglas H. Werner
We present a unified 'chat-to-chip' workflow that links natural-language interaction to rapid design of arbitrary 2D metasurface. For high-DoF 3D plasmonic systems, a fixed-attention LSTM learns physical relationships and highlights key geometric factors. Across FDTD-validated datasets, both models generate candidate structures that match target spectra with minimal computational resources. The approach lowers barriers to interactive, scalable metamaterial design for optics and beyond.
003 - 3-AFTERNOON
Anti-Antibiotic Colloidal Particles to Mitigate Resistance Emergence
AUTHORS: Roya Koshani, Shang-Lin Yeh, Landon G. vom Steeg, Mica L. Pitcher, Robert J. Woods, Andrew F. Read, Amir Sheikhi
Vancomycin (VAN) is a last-resort antibiotic, but its biliary excretion (~5–10%) exposes the gut microbiome, driving dysbiosis and emergence of resistant Enterococcus faecium. To decouple IV VAN therapy from resistance, we engineered an anti-VAN compound comprising hairy cellulose nanocrystals (HCNC) with FDA-approved cholestyramine (CHA). The orally safe AHCNC-CHA, rich in carboxylate groups (3 mmol g⁻¹), enabled >95% VAN removal in vitro and remained effective under GI conditions. In mice, oral AHCNC-CHA reduced fecal shedding of resistant E. faecium by 63%, while preserving VAN efficacy.
004 - 3-AFTERNOON
Cavity Formation Induced by Swift Heavy Ion (SHI) Irradiation in AlN/GaN
AUTHORS: Mahjabin Mahfuz, Xing Wang, Miaomiao Jin
Gallium Nitride (GaN), a wide-bandgap semiconductor, is promising for space applications where swift heavy ion (SHI) damage is critical. This work examines 950 MeV Au ion irradiation effects on AlN/GaN using Transmission Electron Microscopy (TEM) and Molecular Dynamics (MD) simulations. TEM reveals nanometer-scale cavities along ion tracks, with GaN showing cavity growth from ~1.8 to ~2.1 nm at higher fluence. MD confirms cavity formation in GaN but not in AlN, though smaller cavities were observed experimentally in AlN. These findings underscore distinct GaN/AlN irradiation responses.
005 - 3-AFTERNOON
Phenanthrenequinone, a non-volatile, nonhalogenated solid additive, for enhancing thermal stability in organic solar cells
AUTHORS: Souk Y. Kim, Pascale E. N’goran, Athur L. Jin, Ivy M. Asuo, Nutifafa Y. Doumon
Various types of additives have been reported to enhance the performance of organic solar cells (OSCs). However, commonly used solvent additives often compromise device stability and contain harmful halogen elements. Although many studies have introduced high-boiling-point solvent additives and solid additives, these materials often contain toxic components or require complex synthesis. In particular, a comprehensive understanding of their effect on device stability under various conditions is still lacking. In this study, we introduce 9, 10-phenanthrenequinone (PQ), a commercially available...
006 - 3-AFTERNOON
Advancing Material Design: From Surfactant-free Systems to Functional Polymeric Films
AUTHORS: Binish Ashfaq, Chun-Ting Lin , Muhammad Sohail, Iqra Azeem, Ayusman Sen, Basit Yameen*, Paul S. Cremer*, Lauren D. Zarzar1*
One project explores Surfactant-Free Microemulsions (SFME) as eco-friendly, cost-effective alternatives to conventional systems. Using oil, water, and cosolvents, SFME formation is studied via DLS and Raman spectroscopy across 28 ternary systems. Another project develops UV-assisted surface modification of polymer films for scalable, sustainable functional materials. Metal NP-decorated films enable catalytic reduction (e.g., AuNPs for 4-nitrophenol) and sensing (e.g., AgNPs for H‚ÇÇS), advancing green materials chemistry.
007 - 3-AFTERNOON
Chemical Stability of PMN-PZT Powder and BaTiO3 Template Crystals in Water
AUTHORS: Chloe Fellabaum, Christopher Eadie, Beecher Watson, and Mark Fanton
Control of the surface chemistry of PMN-PZT (0.27Pb(Mg1/3,Nb2/3)O3 – 0.73(PbZrO3 – PbTiO3)) and BaTiO3 is critical to the dispersion of the particles in an aqueous system. Proper dispersion of the particles is necessary in the forming process, including efficient milling, consistent slurry rheology, and uniform distribution of the templates. In this study, ICP-AES measurements were utilized to determine the concentration of ions leached from the surfaces as a function of pH and time. Precipitate chemistries and phases formed in the aqueous suspension were then identified using XRD scans.
008 - 3-AFTERNOON
Exploring Plasma-Facing Materials for Fusion in Penn State Nuclear Engineering
AUTHORS: Xing Wang, Martin Nieto, Chase Hargrove, Ashrakat Saefan, Alexandru Marin
Robust plasma-facing materials (PFMs) are essential for achieving sustainable nuclear fusion. The Department of Nuclear Engineering at Penn State is actively advancing both the scientific understanding and technical readiness of promising PFMs, including dispersion-strengthened tungsten and liquid metals. We will present recent results on their performance under fusion-relevant conditions and highlight the IGNIS-2 platform, a unique facility at Penn State that enables in-situ investigation of plasma–material interactions under controlled environments.
009 - 3-AFTERNOON
Interparticle Crosslinked Ion-responsive Microgels for 3D and 4D Bioprinting Applications
AUTHORS: Vaibhav Pal, Deepak Gupta, Suihong Liu, Ilayda Namli, Syed Hasan Askari Rizvi, Yasar Ozer Yilmaz, Logan Haugh, Ethan Michael Gerhard, Ibrahim T Ozbolat
Microgels offer advantages over bulk hydrogels with improved diffusion and bioactivity. This study presents interparticle-crosslinked, ion-responsive microgels for 3D/4D bioprinting, eliminating filler hydrogels while preserving voids for migration and vascularization. Spherical (µS) and random (µR) microgels were fabricated, with µR showing superior mechanics and packing. Constructs supported angiogenesis with tunable vessels, shear-thinning, self-healing, and high fidelity. Multi-material 4D-printing enabled dynamic structures for tissue models, regenerative medicine, and soft robotics.
010 - 3-AFTERNOON
Unraveling the nanostructural origin of sluggish kinetics in hydrogen-based iron oxide reduction
AUTHORS: Yongwen Sun, Dr. Muhammad Jahangir Lodhi, Zhiyu Zhang, Yingxin Zhu, Dr. Yang Yang
Hydrogen based direct reduction of iron oxides is a promising route to carbon-free steelmaking, yet its kinetics remain sluggish.By in-situ 4D-STEM, we visualize nanoscale morphological/phase transformations during hydrogen reduction. We propose metastable Fe‚ÇÅ‚Çã‚ÇìO intermediates generate excess vacancies as oxygen leaves the lattice. These vacancies accelerate atomic diffusion but also promote densification, reducing free volume and blocking hydrogen pathways. Our findings identify the nanostructural origins of sluggish kinetics and suggest strategies for faster, sustainable steel production.
011 - 3-AFTERNOON
Memories of flow : Suspension rheology
AUTHORS: Surendra Padamata
We study memories in a soft, non-Brownian, neutrally buoyant suspension. This system exhibits directional memory, recalling the initial shear direction due to induced anisotropy in its microstructure (fore-aft asymmetry). Additionally, it possesses ‘amplitude memory,’ enabling it to learn the strain amplitude of oscillatory shear. Both directional and amplitude memories can be recalled independently. In this work, we explored the interplay and the dynamic relationship between these two memories, examining how they coexist and shape the emergent memory picture."
012 - 3-AFTERNOON
Bulk Synthesis of Ultra-High Temperature Thermal Protection Systems
AUTHORS: Alexander Silver, Robert Koennecker, Lucas Wilson, Dr. Alex Horia-Marin, Dr. Douglas E. Wolfe
When equipment must operate at elevated temperature, thermal insulation is needed. However, certain applications experience temperatures so extreme that few, if any, conventional materials can survive. Ultra-high temperatures (UHT) demand a new class of materials. For this project, a novel approach involving the optimization of conductive thermal transport is proposed, designed around elevated temperature properties to inhibit electronic heat transfer. In the process, new insights will be gained into electron mobility, thermochemical stability, and structure-property relations at UHT.
013 - 3-AFTERNOON
CHIMES: Center for Heterogeneous Integration of Micro Electronic Systems
AUTHORS: *S. Soltani, M. Swaminathan
The Center for Heterogeneous Integration of Micro Electronic Systems (CHIMES) brings together fifteen universities to advance monolithic 3D and heterogeneous integration, the efficient and effective integration and packaging of semiconductor devices, chiplets, and components. The center is supported through Semiconductor Research Corporation (SRC)’s Joint University Microelectronics Program 2.0 (JUMP 2.0), a consortium of industrial partners
014 - 3-AFTERNOON
Size-Dependent Magnetic and Microwave Heating Behavior of Silica-Coated Iron Oxide Nanoparticles
AUTHORS: Dilara Hatinoglu, Seung Soo S. Lee, Manisha Choudhary, Junseok Lee, Supun B. Attanayake, Kee Young Hwang, Derick Detellem, Manh-Huong Phan, John Fortner, Onur Apul
We investigated how spherical particle size (4nm) controls magnetic behavior and microwave (MW) heating of silica-coated iron oxide nanoparticles prepared by thermal decomposition and reverse microemulsion coating. Coercivity was negligible below 30 nm, while saturation magnetization peaked at 30 nm. MW tests (1 wt.% in sand, 2.45 GHz, 120 s) showed 17 nm particles gave the strongest heating (ΔT = 31.0 ± 0.8 °C) via Néel relaxation and electronic excitation, maintaining superparamagnetism and stability across repeated MW cycles.
001 - 1-AFTERNOON
High Temperature Stability of Schottky and Ohmic Contacts to B-Ga2O3
AUTHORS: Donivan R. Mouck, Suzanne E Mohney, Luke A. M. Lyle
Ultrawide bandgap semiconductors, due to their materials properties, are of interest for high-frequency, high-power, high-temperature, and size-constrained applications in extreme environments. To operate in these extreme conditions metal-semiconductor contacts must be stable at high temperatures. This research focuses on testing the stability of both Schottky and ohmic contacts at high temperature to β-Ga2O3 through both electrical measurements, after high temperature anneals, and structural characterization methods to analyze the stability of the metal-semiconductor contacts and interfaces.
002 - 1-AFTERNOON
Time matters: Kinetic effects in Shape Memory Polymers
AUTHORS: Sebanti Chattopadhyay, Nathan Keim and Patrick T. Mather
Shape memory polymers (SMPs) are smart materials that can reversibly switch between an equilibrium and a mechanically programmed state via an external trigger. Conventional study and usage of SMPs involves deformation and 'fixing' in the temporary shape by cooling induced crystallization/vitrification. We study a semi-crystalline SMP by varying the imposed strain, stress, and temperature as it undergoes fixing. We find that the mechanical properties of the fixed state are influenced by the kinetics of crystallization. Thus, we can tune SMPs using thermo-mechanical protocols.
003 - 1-AFTERNOON
Effect of Material Properties on the Release of Per- and Polyfluoroalkyl Substances from Spent Granular Activated Carbons
AUTHORS: Paulina Alulema-Pullupaxi, Yi Zhang, Navid B. Saleh, Arjun Venkatesan, Onur G. Apul
PFAS-laden granular activated carbon (GAC) poses challenges for solid waste management due to its potential for environmental release. This study evaluated PFOA and PFOS leaching from four commercial GACs using three standard batch procedures. PFOA leached 1–2 orders of magnitude more than PFOS, influenced by GAC properties like particle size, surface area, and porosity. Leaching tests with PFAS-spiked groundwater showed greater release for shorter-chain, hydrophilic PFAS. Results highlight complex interactions between GAC surfaces, PFAS, and leaching solution chemistry.
004 - 1-AFTERNOON
Enhancing the Performance of Acoustic Components by Incorporating Mycelium-Based Composites with Dynamic Geometries
AUTHORS: Aisa Shams, Benay Gursoy, Nathan Brown
This research investigates mycelium-based composites (MBCs) derived from Spent Mushroom Substrate (SMS) for use in reconfigurable acoustic panels. By comparing fabrication methods and integrating acoustic simulations with design optimization, the study develops strategies that enhance panel strength and sound absorption. The work demonstrates the feasibility of SMS-based panels as sustainable alternatives to conventional materials, combining waste valorization with improved acoustic performance in multipurpose architectural spaces.
005 - 1-AFTERNOON
Mechanics of Drying in Bioinspired Microcapsules
AUTHORS: Luyi Feng, Yang Wang2, Ruyue Fang, Sulin Zhang, David Weitz
Drying porous, semi-permeable microcapsules offers a route to stabilize encapsulated actives for long-term storage, but often triggers buckling, compromising functionality. Inspired by natural desiccation tolerance, we engineered bioinspired microcapsules of various sizes using double-emulsion templating and coupled phase-field modeling with experiments to elucidate drying mechanics. We demonstrate that buckling arises from capillary pressure at asymmetric water-vapor interface within shell nanopores. The surface area under capillary pressure is governed by drying kinetics, including the rate.
006 - 1-AFTERNOON
Investigating Grain Boundary Effects on Corrosion Behavior of Ni-Cr Alloys in molten FLiNaK Salt
AUTHORS: Sadia Khan, Hamdy Arkoub, Miaomiao Jin
Molten salt reactors (MSRs) offer high-temperature operation and safety, but corrosion from molten salts threatens integrity. Using ReaxFF molecular dynamics, we investigate how grain boundary (GB) character influences Ni–Cr alloy corrosion in FLiNaK. Distinct GBs, including Σ3(111) and Σ5(013), were analyzed for dissolution, fluorine–metal interactions, diffusion, and migration. Results show surface orientation dominates early corrosion, while GB structure governs pathways. The work highlights GB engineering as a strategy for corrosion-resistant materials in the next generation reactors.
007 - 1-AFTERNOON
AMMap tool for additive manufacturing design, alloy discovery, and path planning
AUTHORS: Alexander Richter, Adam Krajewski, Allison M. Beese, Zi-Kui Liu
Additive manufacturing of functionally graded materials often leads to undesired phase formation or hot-cracking. Thermodynamic simulations help identify feasible compositions and predict cracking risk. AMMap, an open-source library built on CalPhaD and the nimplex library, explores high-order alloy spaces using graph-based algorithms. It represents composition space as connected graphs, enabling automated design using gradient descent, graph traversal, and other optimization techniques. AMMap supports scalable exploration of complex systems, accelerating the discovery of viable material paths
008 - 1-AFTERNOON
Engineering Design and Optimization Group (EDOG) Research Overview
AUTHORS: R. Pal, J. Butler, M. Frecker
The Engineering Design and Optimization Group (EDOG) is a research team in Mechanical Engineering and the School of Engineering Design and Innovation. EDOG integrates materials selection, optimization, simulation, and advanced manufacturing to tackle biomedical and shape-reconfiguration challenges. Projects include magneto-active elastomers for adjustable devices, flexible and bioresorbable implants, and optimization of reconfigurable structures using additive manufacturing, constant-force mechanisms, buckling-driven transformations, and origami-inspired fabrication.
009 - 1-AFTERNOON
Evaporation-Induced Phase Separation Engineered Hydrogel Membranes with Tunable Pore Architecture
AUTHORS: Shubhra Goel, Robert Hickey
Polymeric membranes support invitro tissue models by providing cell-adhesive, porous substrates that enable signaling and transport. We make porogen-free PS-PEO-PS membranes using evaporation-induced phase separation from chloroform casts. Dry films are transparent and stiff; swells in water into flexible hydrogels. Insitu SAXS shows PEO crystallization during drying and its loss after hydration. Adjusting evaporation rate tunes porosity and mechanics without chemical crosslinking. Chondrocyte viability and easier handling than agarose point to a tunable, hydration responsive scaffolds.
010 - 1-AFTERNOON
Application of polyelectrolyte multilayer coatings to reduce chloride ion crossover in an asymmetric seawater electrolysis cell
AUTHORS: Chenghan Xie, Xuechen Zhou, Rachel F. Taylor, Bin Bian, Bruce E. Logan
To prevent harmful chlorine gas formation from chloride crossover in asymmetric seawater electrolysis, we coated polyamide thin-film composite membranes with negatively charged polyelectrolyte multilayers. Using nitrate as a chloride surrogate, the coating reduced nitrate crossover by 19%. Increasing the salt concentration during multilayer fabrication enhanced the coating's negative charge, further decreasing anion transport via Donnan exclusion. These results show that polyelectrolyte coatings is a feasible strategy to control ion transport in asymmetric seawater electrolysis.
011 - 1-AFTERNOON
Decoupling One-dimensional and Two-dimensional Corrosion in Metals
AUTHORS: Lei Ding; Weiyue Zhou; Yang Yang
Molten salt corrosion challenges structural materials in advanced nuclear systems. Traditional weight loss methods overlook corrosion morphologies. We introduce a framework to quantify one-dimensional (1D) and two-dimensional (2D) corrosion in metals. We analyze different alloys (Ni–20Cr, SS-316, and Incoloy-800H) using FIB imaging, 3D reconstruction, and statistical metrics. It is found that alloys show mixed 1D/2D features; with Ni–20Cr exhibiting the strongest 1D character. These results reveal alloy-dependent corrosion behaviors and highlight 3D metrics for understanding degradation.
012 - 1-AFTERNOON
Designing Electro-Optic Materials for Quantum Computing using The Phase-Field Method
AUTHORS: Aiden Ross, Sankalpa Harza, Albert Suceava, Dylan Sotir, Darrell Schlom, Venkatraman Gopalan, and Long-Qing Chen
Future quantum computing architectures require electro-optic (EO) materials with strong, stable cryogenic performance. Conventional platforms like LiNbO‚ÇÉ show limited EO response, while BaTiO‚ÇÉ loses its large room-temperature response when cooled. Using phase-field simulations, we demonstrate that strain engineering stabilizes a monoclinic phase in BaTiO‚ÇÉ, enabling a giant cryogenic EO effect. This yields a 100√ó improvement over LiNbO‚ÇÉ and establishes design principles for creating high-performance EO materials optimized for quantum applications.
013 - 1-AFTERNOON
Microstructural evolution in 316L stainless steel under lead-bismuth eutectic corrosion
AUTHORS: Zhiyu Zhang, Sarah Wang, Peter Hosemann, Yang Yang, Andrew M. Minor
Lead-bismuth eutectic (LBE) is a highly effective and corrosive liquid metal coolant, suitable for various high-temperature cooling applications. Previous study has shown that deformation-induced twin boundaries can facilitate LBE penetration into steel, accompanied by the ferritization process that transforms the face-centered cubic (FCC) steel matrix into a body-centered cubic (BCC) structure. In this study, we utilized an advanced technique known as four-dimensional scanning transmission electron microscopy (4D-STEM) to investigate ferritization during late-stage LBE corrosion.
014 - 1-AFTERNOON
Deployment of an In Situ X-ray Imaging System for Boule Growth
AUTHORS: Stanislav Udovenko, Joshua Robinson, Darren Pagan
Here we provide an update on the installation of an in situ X-ray imaging system to be installed on a silicon carbide (SiC) growth furnace for the Silicon Carbide Innovation Alliance. The system will facilitate the measurement of SiC growth rates and the evolution of source powders that sublimate during growth. Data will be used to optimize the SiC growth process.
015 - 1-AFTERNOON
Molecular Beam Epitaxy of 2D materials
AUTHORS: Ryan Trice, Madison Ramsey, Qihua Zhang, Maria Hilse, Stephanie Law
Two-dimensional (2D) van der Waals (vdW) materials are interesting for a variety of applications ranging from optoelectronics and photocatalysis to energy storage and topological devices. In this poster we will discuss the growth of vdW materials by Molecular Beam Epitaxy and some of our efforts in selective growth of these materials.
016 - 1-AFTERNOON
Ternary Hybrid Scaffolds: Incorporating 45S5 Bioglass and Polypeptides into Gelatin Methacrylate for Enhanced 3D Printing of Bone Scaffolds
AUTHORS: Brendan Karafinski, Zongye Li, Benjamin Booker, Nairiti Sinha
45S5 bioglass and gelatin methacrylate (GelMA) hydrogels are promising for 3D printed bone scaffolds, but challenges remain in particle dispersion and printability. Here we introduce a positively charged polypeptide as a novel third component. The peptide enhances electrostatic interactions between negatively charged 45S5 and the GelMA network, improving incorporation, rheological properties, and potentially promoting hydroxyapatite mineralization. This ternary system offers a modular route to bioactive, printable scaffolds for bone regeneration.
017 - 1-AFTERNOON
Enhanced Lithium-Ion Conductivity in Single-Ion Conducting Polyelectrolytes with Low-Tg Zwitterion Addition
AUTHORS: Zitan Huang, Yifan Liu, Michelle L. Lehmann, Peter V. Bonnesen, Ain Uddin, Tomonori Saito, Valentino R. Cooper, and Ralph H. Colby
Zwitterions (ZIs) have been widely investigated as potential additives to increase the conductivity of solid polyelectrolytes (SPEs), due to their highly polarized nature. However, due to the inherent strong interactions between ZIs, most ZIs are likely to crystallize and tend to have a relatively high glass transition temperature. Therefore, in this research, two zwitterions (ZI-SO3 and ZI-BSI) with low Tg were synthesized. Both zwitterions significantly enhance the ionic conductivity of the SPE, with ZI-BSI yielding a 100-fold increase. Furthermore, the addition of more ZI-SO3 decreases the
018 - 1-AFTERNOON
Electroactive Performance of Electrospun Cellulose Nanocrystal Composites
AUTHORS: Amirhossein Farahani, Hania Elsayed, Patrick T Mather, Zoubeida Ounaies
We develop sustainable electroactive composites by electrospinning cellulose nanocrystals (CNCs) into polymer matrices, focusing on sulfate-bearing CNCs (S-CNCs) in poly(ethylene oxide) (PEO). Electrospinning aligns CNCs and fibers, improving flexibility and electromechanical response over cast films. We study how surface chemistry, ionic doping, and processing affect morphology, crystallinity, dielectric, and piezoelectric behavior. Results show S-CNCs need optimization to balance spinnability and performance, guiding design of biodegradable, high-performance nanofiber composites.
019 - 1-AFTERNOON
Bioinstructive mineralized silk fibroin scaffold for enthesis repair
AUTHORS: Gabrielle L. Hamner, Justin L. Brown
The enthesis serves as the attachment site of tendons, ligaments, or joint capsules to bone. This connective tissue functions to transmit mechanical forces between soft and hard tissues, as well as provide stability and facilitate movement. Healthy enthesis tissue has hydroxyapatite crystals deposited in a gradient throughout collagen fibers. Our research focuses on integrating a novel pseudo-woven electrospinning approach with bioinstructive mineralization of silk fibroin scaffolds to recreate this unique microenvironment for more effective and synergistic enthesis repair.
020 - 1-AFTERNOON
SCIA Project Overviews and Highlights
AUTHORS: Katherine Thompson, Mathias Yost, Anirban Phukan, Gaun Jeong, Michael Robison, Evan Krohn, Riasat Islam, Stanislav Udovenko, Ian Binnie, Tekin Ozdemir, Dave Fecko, Suzanne Mohney, Randy Vander Wal, Adri van Duin, Yun Kyung Shin, Margaret Kowalik, Matthew Krohn, Darren Pagan, Yuan Xuan, Joshua Robinson
The Silicon Carbide Innovation Alliance (SCIA) is a coalition of industry leaders, academic institutions and government support with a focus on becoming the nation's central hub for research, development and workforce training in silicon SiC crystal technology. SCIA currently has four interrelated projects to develop a comprehensive understanding of how to synthesize and process high quality SiC boules. Three projects focus on the SiC boule growth as we are developing a porous carbon insert to aid the SiC growth, investigating the impact of SiC source form-factor and packing on the boule growth rate and properties, and deploying an in-situ X-ray imaging system to monitor the boule growth during the physical vapor transport (PVT) runs. Additionally, we are investigating the role of diamond slurry properties on SiC removal rates and sub-surface damage during wafer processing. These projects will provide invaluable insights to the alliance partners to progress the SiC crystal technology.
021 - 1-AFTERNOON
Advancements in Thermal Management of Embedded Dies using Microfluidic Techniques
AUTHORS: Ruposri Bhattacharjee, Joon Woo Kim, Madhavan Swaminathan
The increased demand for compact and high- performance system-on-chip devices gives rise to increased IC hotspot power density. Such rise in hotspot causes increased chip temperature, altering the operating point and results in degradation of performance, reliability, and lifetime of the devices. Hence, thermal management becomes imperative to dissipate heat from semiconductor devices. This study introduces a cost-effective microfluidic cooling approach in glass-based System-in-Package devices, using copper vias and embedded microchannel heat sinks to enhance heat dissipation from embedded dies. The design effectively maintains chip temperatures below 60 °C across varying power densities and flow rates, offering a scalable solution for thermal management in high-performance systems.
022 - 1-AFTERNOON
Broadband Dielectric Characterization of Permafrost Across Freeze-Thaw Cycles
AUTHORS: MD Mashfiqur Rahman, Arafat Hossain, Agustin Harte, Steven Perini, Mohamed El-Tantawy, Dipika Mandal, Tugce Baser, Michael Lanagan
Remote sensing in the Arctic regions is an essential tool for tracking the changing landscapes due to climate change, employing a wide range of frequencies in the electromagnetic spectrum to assess the condition of permafrost. Permafrost is a complex material of solid, liquid, gas, organic, and inorganic phases, with each constituent contributing to the broadband dielectric response. The dielectric properties, coupled with the physical structure of permafrost, yield distinct electromagnetic signatures that are detectable through remote sensing. In this study, phantom permafrost samples were systematically prepared by mixing clay, silt, sand, and peat (as organic matter) with varying amounts of water. Broadband electromagnetic characterization and IR spectroscopy were subsequently performed on these mixtures to analyze their properties. An effective medium model was developed to quantify and predict the dielectric response of permafrost over broad frequency and temperature ranges.
001 - B-AFTERNOON
Molten salt electrolytes for CO2-free for electrolytic reduction of iron oxides at low temperatures
AUTHORS: Arezo Mahdavi Varposhti*, Peyman Asghari-Rad, Hojong Kim
This work develops a decarbonized ironmaking process via electrolytic reduction of iron oxides below 600 °C. Iron forms at the cathode, and oxygen evolves at stable anodes with conductive oxide layers. The process eliminates direct CO₂ emissions and enables high-purity production. Low-temperature electrowinning extends anode lifetime. The project focuses on molten salt electrolytes with low melting points and high oxide-ion solubility to ensure efficient ion transport. Efforts aim to optimize electrolyte chemistry for high current density and minimal anode recession.
002 - B-AFTERNOON
Potential-dependent corrosion mechanisms of Ni-Cr alloy in molten LiCl-KCl
AUTHORS: Peyman Asghari-Rad, Nathan D. Smith, Feifei Shi, Hojong Kim
In this work, we elucidate the potential-dependent corrosion behavior of Ni–Cr (80–20 wt%) alloy in molten eutectic LiCl–KCl at 500 °C under an inert atmosphere. Through cyclic voltammetry and chronoamperometry, we characterize the redox transitions and diffusion kinetics of Cr(II) and Ni(II) species. Complementary corrosion testing confirmed Cr dealloying near the open-circuit potential and deeper corrosion layers at elevated potentials. This work offers practical guidance for corrosion mitigation and alloy selection in next-generation electrochemical and thermal energy systems.
003 - B-AFTERNOON
Tuning Optoelectronic Properties of Transition Metal Dichalcogenides via Dopant-Defect Interactions
AUTHORS: S. Mathela, K.T. Munson, Z. Yu, Z. D. Ward, A. Sredenschek, R. Torsi, R. Pendurthi, E. A. Marques, B. V. Troeye, L. Huberich, B. Schuler, M. A. Feidler, K. Wang, G. Pourtois, S. Das, Y. C. Lin, J. A. Robinson, H. M. Terrones, M. Terrones and J. B. Asbury
2D TMDs show great potential in optoelectronics, sensing, and quantum technologies, but their performance is strongly influenced by intrinsic defects and dopant–defect interactions. We investigate substitutionally doped MoS₂ and WS₂ using spectroscopy, field-effect transistor measurements, and atomic-resolution imaging. Rhenium doping suppresses sulfur vacancies, enhancing carrier density and mobility, while vanadium doping tunes exciton dynamics in a concentration-dependent manner. These findings offer a framework to optimize TMDs through defect-engineered doping.
004 - B-AFTERNOON
Bandgap Energy Estimation: A Tauc Alternative
AUTHORS: Philip Chamberlin and Dr. Kofi Adu
Estimating a material’s bandgap is essential for evaluating its use in photovoltaics and other technologies. The Tauc plot is a common method but requires prior knowledge of the band structure and involves subjective interpretation, making it less suitable for novel materials. We introduce an alternative approach that maintains the simplicity of the Tauc method while removing these limitations. To further reduce subjectivity, we developed an application to standardize the process. Comparisons with the Tauc method and published data demonstrate the accuracy and effectiveness of our technique.
005 - B-AFTERNOON
Residual Stress Analysis of Additively Manufactured Materials Using Grazing Incidence X-Ray Diffraction
AUTHORS: Joshua Carlson, Ellery Schlorff, Nichole Wonderling, Elizabeth Mamros, Bonnie Whitney, Nick Palya
Additive manufacturing (AM) of metals has broadened production possibilities, but it can introduce residual stresses that must be quantified to ensure confidence in mechanical performance and structural integrity. Conventional X-ray methods for stress analysis are time-consuming, whereas Grazing Incidence X-ray Diffraction (GIXRD) offers advantages such as controllable penetration depth, greater efficiency, and better suitability for metals with large grain sizes. This study examines the strengths and limitations of GIXRD for residual stress evaluation in AM-produced Inconel and Aluminum 7050.
006 - B-AFTERNOON
Integrated Strategy for Passivation of Photovoltaic Perovskite Thin films
AUTHORS: Wonbae Lee, Mashood E. O. Tidjane, Ivy M. Asuo
Antisolvent and passivation processes are critical for the crystallization and performance of metal halide perovskite solar cells. We present a one-step passivation strategy by dissolving ionic salt in ethanol and dichlorobenzene antisolvents. Various volume ratios of the antisolvents were investigated to optimize thin film quality. UV–Vis, SEM, and XRD characteristics linked antisolvent composition and concentration with thin film properties. This approach establishes a processing–structure relationship that guides optimization of antisolvent engineering for improved device efficiency.
007 - B-AFTERNOON
An Overview of Capabilities and R&D at the Penn State Applied Research Laboratory’s Electronic Materials and Devices Department (EMDD)
AUTHORS: Matthew Krohn, Lance Gonzalez
EMDD is a vertically integrated laboratory with extensive capabilities for research, development, prototyping, and manufacturing technology transition of electronic materials and devices. The primary core capabilities to be displayed include material synthesis and processing of ultra-wide and wide bandgap semiconductors (UWBGS / WBGS), material characterization of piezoelectric crystals, device design, nanofabrication, and testing of high temperature electronics, and finally additive manufacturing of electronic components.
008 - B-AFTERNOON
Dissipation and Decoherence in Quantum Systems: The Role of Anharmonic Environments
AUTHORS: Cristoval I. Vallejos, Ricardo C. Heitzer, Jorge O. Sofo
Quantum systems are never completely isolated—they constantly interact with their surroundings (the bath). This coupling, especially through vibrations, can limit the performance of emergent technologies such as quantum sensors. In a purely harmonic bath, where phonons have infinite lifetimes, energy transfer is restricted by a spectral gap. Introducing bath anharmonicities (nonlinear effects) enables phonon scattering processes that allow low-frequency transitions. We study a qubit embedded in a crystal and show how these processes influence both its energy dissipation and decoherence.
009 - B-AFTERNOON
Heterogeneous Integration and Architectures for Sub-THz Wireless Communication
AUTHORS: Mahin Ahmed, Mohammad Al-Juwhari, Xingchen Li, Madhavan Swaminathan
This work presents the development of advanced technologies for high-frequency RF applications, emphasizing both device design and material characterization. The study introduces an empty substrate-integrated waveguide (eSIW) Butler matrix integrated with a slot antenna array for beamforming applications at millimeter-wave and sub-terahertz frequencies. Additionally, the use of liquid crystal materials as reconfigurable dielectrics is demonstrated, enabling tunable performance in RF systems operating at these high frequencies. Furthermore, the dielectric characterization of Ajinomoto Build-up Film (ABF) polymer is performed across different temperatures to evaluate its suitability for high-frequency packaging applications.
010 - B-AFTERNOON
Novel materials and high performance dielectrics and piezoelectrics
AUTHORS: Clive Randall's research group
Electroceramics are a broad class of functional materials that find use in areas such as aerospace, the medical industry, military applications, power engineering, circuitry, and other industries where improved properties and reliable behavior are required. This poster shows a comprehensive summary of 1) the development of new quasi-linear and high-temperature dielectrics; 2) pulse-poling techniques to enhance piezoelectric properties; and 3) the understanding of failure mechanisms in capacitors using non-linear mathematical approaches to predict damage.
011 - B-AFTERNOON
Theory-Guided Design and Optimization of Bio-Inspired Iron-Nickel Sulfide Electrocatalysts for Green Hydrogen Production
AUTHORS: Nikhil Komalla, Nelson Y. Dzade
Green hydrogen is a promising clean energy source, yet the high cost of Pt-based electrocatalysts limits scalability. Natural enzymes such as hydrogenases with Fe-Ni-S active sites achieve Pt-like efficiency in H⁺/H₂ conversion. Structural similarities between Fe-Ni sulfide minerals (violarite) and enzyme active sites offer motivation to develop low-cost catalysts. This work employs Density Functional Theory (DFT) to design and optimize efficient Fe-Ni sulfides electrocatalysts for green H2 production by elucidating their electronic structure modulation, surface reactivity, and HER mechanisms.
012 - B-AFTERNOON
Photocatalytic Properties of Calcium Copper Titanate (CaCu3Ti4O12) for Water Splitting: Insights from First-Principles Density Functional Theory
AUTHORS: Joy A. Adul and Nelson Y. Dzade
Calcium copper titanate (CaCu‚ÇÉTi‚ÇÑO‚ÇÅ‚ÇÇ, CCTO) shows strong photocatalytic potential due to its dielectric behavior, stability, and visible-light bandgap. Using first-principles DFT, we evaluated bulk properties and constructed (001), (011), and (111) slabs to analyze surface stability and cleavage energies. Water adsorption studies revealed that Ti-terminated (001) surfaces favor dissociation with strong H/OH binding, while Cu and Ca sites showed weaker interactions. Results highlight Ti-rich terminations as key catalytic centers for solar water splitting.
013 - B-AFTERNOON
Interfacial Passivation and Solvent-Engineering of Low-Bandgap Perovskite for Indoor Photovoltaics
AUTHORS: Justin Lin, Ivy Asuo, Nutifafa Doumon
Metal halide perovskites are attractive for IPVs due to their tunable bandgaps, which allow bandgap engineering to match the perovskite’s absorption to the spectra of indoor lights. However, relative to their outdoor applications, perovskite IPVs experience higher charge recombination due to the lower light intensities indoors, which acts to limit the performance of the IPV devices. Herein, we propose IPV devices with enhanced performance through the use of anti-solvent engineering and interfacial passivation layers to increase perovskite quality and reduce nonradiative recombination.
014 - B-AFTERNOON
Ambient-Processed & Eco-Friendly Semitransparent Perovskite Solar Cells
AUTHORS: Cyril C. F. Kumachang, Brittlee Reese, Tawanda J. Zimudzi, Ivy M. Asuo, and Nutifafa Y. Doumon
The shift to sustainable solar technologies demands efficient, eco-friendly, and scalable fabrication. Metal halide perovskite photovoltaics (MHP-PVs) offer high efficiencies but rely on toxic solvents like DMF, recently banned in the EU. This study explores DMSO-only formulations for ambient-processed semitransparent PSCs using green anti-solvents (IPA, EtOH). IPA-treated devices achieved 14.7% PCE—lower than DMF:DMSO (~21.3%)—but with higher light utilization efficiency (4.0%) from improved transmittance. Results highlight solvent/anti-solvent engineering as critical for eco-friendly PSCs.
015 - B-AFTERNOON
Fundamentals and Frontiers in Glass, The Mauro Glass Group
AUTHORS: Jessica Sly, Mehmet Arda Ozay, Elif Pinar Akman Ozay, Aaron Bossen, Cristian Perez
The Mauro Glass Group studies the fundamental nature of glass while advancing technologies that address global challenges. Current research centers on LionGlass, a new family of glasses engineered to reduce the production energy consumption compared to conventional glass. By using alternative batch materials, LionGlass can significantly lower the carbon footprint of the glass industry. Beyond this, the group explores a range of topics, including glass relaxation, dissolvable glasses for bioactive applications, and the interactions between glass and refractory materials.
016 - B-AFTERNOON
Nano-Sized Polymer-Assisted Cold Sintering and Recycling of Ceramic Composites
AUTHORS: Juchen Zhang, Enrique D. Gomez, Hongtao Sun
Cold sintering is an emerging technology that applies uniaxial pressure and a transient solvent to reduce the ceramic sintering temperature, enabling co-sintering of ceramics and polymers into unprecedented composites, where the low-energy consumption densification provides an opportunity for recycling. Here, we cold sintered barium titanate (BaTiO3) with polytetrafluoroethyelne (PTFE), showing that nano-sized polymer powders facilitate fabrication and recycling of ceramic-polymer composites. This incorporation provides the potential for enhancing sustainability through energy saving.
017 - B-AFTERNOON
Towards Sustainable Manufacturing: Performance Investigation of Lightweight Halogen-Free OPV Devices
AUTHORS: Noura Rayes, Enrique Gomez
Halogenated solvents and halogen-containing organic semiconductors are widely used in the fabrication of high-performance thin films for flexible photovoltaics, transistors, and sensors due to their favorable solubility, optoelectronic, and film forming properties. However, minimizing reliance on halogenated compounds will not only possess lower manufacturing costs but protect the well being of our environment. Novel fabrication and characterization of nonhalogenated lightweight organic photovoltaic thin films are explored in this study for the future of sustainable organic electronic films.
018 - B-AFTERNOON
Electroactive Performance of Electrospun Cellulose Nanocrystal Composites
AUTHORS: Amirhossein Farahani, Hania Elsayed, Patrick T Mather, Zoubeida Ounaies
We are developing sustainable, electroactive composites by electrospinning cellulose nanocrystals (CNCs) into polymer matrices. Our work examines sulfate-bearing CNCs (S-CNCs) embedded in poly(ethylene oxide) (PEO). Electrospinning enables alignment of CNCs and fibers, enhancing mechanical flexibility and electromechanical response compared to cast films. We investigate how CNC surface chemistry, ionic doping, and processing variables influence fiber morphology, crystallinity, dielectric behavior, and piezoelectric performance. Preliminary results show that S-CNCs require optimization to balan
019 - B-AFTERNOON
Bridging Mechanisms and Materials: Interfacial Phenomena in Lubricants, Metals, Carbons, and Glasses
AUTHORS: Nahian Siddique, Ruichuan Yuan, Evan Buckwalter, Bahareh Kheilnezhad, Seong H. Kim
We study how ultra-thin films in EV gearboxes and bearings regulate current flow, suppress stray-current damage, guiding lubricant design. For solid lubricants, we identify a structural “sweet spot” where glassy carbon achieves near-superlubricity, and engineer Si-doped coatings that overcome brittleness while delivering stable ultralow friction. At aqueous–gold interfaces, we reveal how water structure governs nanoscale heat transfer, advancing molecular models and nanoparticle therapies. Finally, we demonstrate how zirconia modifies glass networks, enhancing hardness and crack resistance.
020 - B-AFTERNOON
Sustainable Graphitization of Biopolymers and Biomass Waste via Reactive Templating with Oxygen-Containing Additives
AUTHORS: Rowfi Khan, Dr. Randy Vander Wal
We present a sustainable route to graphitic carbon using renewable biopolymers such as lignin and cellulose, replacing petroleum-derived precursors. Reactive templating with graphene oxide promotes ordered lamellae growth and lowers defect density during carbonization. Characterization (XRD, TEM, Raman) highlights the role of oxygen functionality in structure and conductivity. Extending the approach to tree bark and molded recycled cardboard demonstrates the potential of renewable waste as scalable, low-cost precursors for energy storage materials.
021 - B-AFTERNOON
Postpolymerization Strategies for Polymer Waste Recycling and Upcycling
AUTHORS: Mohammad S. Laeini
Designing polymer materials through monomer development is effective for synthesizing advanced materials, but translation commercially is hindered by the high cost of novel monomers. Post-polymerization modification (PPM) is an ideal method for the incorporation of polar groups into commercially available polymers such as polyethylene (PE). The goal of this study is to use PPM for polymer waste recycling and upcycling. This work focuses on two primary objectives.