Prof. Junqiao Wu
Department of Materials Science and Engineering, UC Berkeley
October 2, 2012 | 12:00 to 01:00 | 540 Cory Hall, DOP Center Conference Room
Host: John Huggins
Vanadium dioxide (VO₂) exhibiting coupled metal-insulator and structural phase transition at 67 degrees C is of great interest for both fundamental understanding of correlated electron physics and potential device applications. In this talk I will focus on the application side of our recent VO₂ work. By probing the phase transition under a surface electrostatic field or a surface stress, we show a surface phase transition that can be reversibly modulated with a gate voltage. By interfacing VO₂ with other materials, we develop a range of novel sensing and actuation devices, including a micro solid engine that offers actuation at high speed, large force, high amplitude and high energy efficiency, and a power meter that can directly gauge heat flow at the nano to microscale.
Interested in nominating someone to speak at the BSAC Technology Seminar? We welcome you to submit a speaker nomination here