2DCC Broader Impact Higlight

What Has Been Achieved:

We have demonstrated an efficient method to determine the symmetry and lattice constants as well as the long-range perfection of 2D materials using glancing incident electron diffraction.

Importance of the Achievement:

This ARHEED methodology can be applied to other epitaxial 2D materials and to examine the wafer scale structure and perfection.

Unique Feature(s) of the MIP that Enabled this Achievement:

What Has Been Achieved:

Ultrafast optical pump-probe measurements of sound velocity, elastic constants, and phonon lifetimes in TMD crystals.

Importance of the Achievement: Phonon lifetime measurements for these novel materials are rare, and they are useful in predicting thermal conductivity.  Also the strong reflectivity signals produce by these relatively small elastic strains are a promising indicator of the future effectiveness of these materials as transient ultrasonic strain sensors.

What Has Been Achieved:

This study provides direct evidence of the competing effects of free electrons on thermal conductivity

and discloses that free electrons could lead to a net negative contribution to the thermal conductivity of NbSe3.

Importance of the Achievement:

It provide insights into the roles that free electrons plays in thermal transport and should have broad implications in thermal engineering.

What Has Been Achieved:

Quantitative experimental study of the rate of native oxidation of transition metal dichalcogenides: MoS2 and of a family of Zr(S,Se)2 alloys. Theoretical study illuminating the atomistic basis for the extreme difference between non-oxidation of MoS2 and rapid oxidation of Zr(S,Se)2.

Importance of the Achievement:

What Has Been Achieved:

A geospatial tool that enables users to identify minority-serving, primarily undergraduate, and non-R1 institutions in specific geographical areas, selecting for research activity in areas of interest, to enhance visibility and accessibility.

Importance of Achievement:

This tool is designed to broaden participation and strengthen trans-disciplinary community connections through travel extension, and is also designed in a manner that can potentially serve additional use cases.

What Has Been Achieved:

An integrated system for acquiring and tracking synthesis and characterization data (and publications, reporting) associated with all samples produced at the 2DCC-MIP (both locally and, through web access, remotely at user institutions), in an extensible framework with differing levels of access to staff, users, and the wider community.

Importance of Achievement:

Capturing this data in a unified framework will facilitate and enable new data-centric research approaches in 2D materials.

What Has Been Achieved:

What Has Been Achieved:

What Has Been Achieved:

An integrated system for acquiring and tracking synthesis and characterization data (and publications, reporting) associated with all samples produced at the 2DCC-MIP (both locally and, through web access, remotely at user institutions), in an extensible framework with differing levels of access to staff, users, and the wider community.

Importance of Achievement:

Capturing this data in a unified framework will facilitate and enable new data-centric research approaches in 2D materials.

What Has Been Achieved: