Electrochemical Impedance Spectroscopy

Impedance spectroscopy is a linear technique implemented to study the electrical properties of dielectric and semi-conductive materials by applying an AC electric field (stimulus) and measuring the electrical current through the sample (response) over a range of frequencies and temperatures. Impedance spectroscopy informs on the polarizations contributing to the dielectric behavior of materials as well as dielectric relaxation (Δε), thermal transitions (Tg), ferroelectric transitions (Tc), charge distribution in materials (bulk, depleted layers, grain boundaries, etc.).

Electrical and Mechanical Displacement Measurement

(also known as polarization and strain measurement)

This system measures the electrical and mechanical displacement of dielectric materials induced by an applied AC field. The following properties can be extracted:

  • D-E hysteresis loop parameters, polarization density, energy storage and loss
  • Electromechanical coupling: piezoelectricity, electrostriction, etc.
Sulin Zhang

Sulin Zhang

Professor of Engineering Science and Mechanics and Bioengineering

(e) suz10@psu.edu
(o) 814-865-7640
N-231 Millennium Science Building

Qiming Zhang

Qiming Zhang

Distinguished Professor of Electrical Engineering

(e) qxz1@psu.edu
(o) 814-863-8994
N-219 Millennium Science Complex

Thomas Shrout

Thomas Shrout

Senior Scientist and Professor of Materials Science and Engineering

(e) trs16@psu.edu
(o) 814-865-1645
N-332 Millennium Science Complex

Clive Randall

Clive Randall

Professor of Materials Science and Engineering Director, Materials Research Institute

(e) car4@psu.edu, (e) randall@matse.psu.edu
(o) 814-863-1328
N-221 Millennium Science Complex

Shashank Priya

Shashank Priya

Associate Vice President for Research and Director of Strategic Initiatives

(e) sup103@psu.edu
(o) 814-863-9657
304 Old Main

Richard Meyer

Richard Meyer

Senior Research Associate and Associate Professor of Materials

(e) rjm150@psu.edu
(o) 814-865-9607
9730 Applied Research Lab