UAIPD13-0004 “Novel Exfoliation Process for Bismuth

Telluride”Dr. Hung-Ta Wang

Current Problems• Thermoelectric generators are used to

recover heat from heat engines. – These materials utilize temperature gradient to

effectively convert waste heat into electricity.• No widespread adoption due to inability to

efficiently manipulate low quality, difficult to capture heat (T<200oC)

• Also there is lack of practical, cost-effective method to make thermoelectric devices

• Bismuth telluride (Bi2Te3) is layered material with exceptional thermoelectric properties.

• Developed reliable and effective method for industrial scale production of 2D Bi2Te3

– Convenient, cost effective route

• Method also allows for easy deposit of this 2D material onto a substrate

Technology

Before and after exfoliation of Bi2Te3 in ionic liquid

• Dr. Hung-Ta Wang– Associate Professor– Over 50 Publications– 1 patent application

• Departments– Chemical and Biological Engineering– Center for Materials for Information

Technologies

Inventor

Office for Technology Transfer720 2nd Ct E

Tuscaloosa, AL 35401UAIPD13-0004OTT@UA.edu

www.OTT.UA.edu