Events Calendar

Munushian Seminar - Mark Lundstrom, Friday, March 11th at 2:00pm in EEB 132

Speaker: Mark Lundstrom, Purdue University

Talk Title: Electrons and Phonons in Nanodevices

Abstract: The theory of electron transport in semiconductors has developed, evolved, and matured alongside the development of semiconductor technology from microelectronics to nanoelectronics. The field of thermal transport has an even longer history beginning with Fourier's Law, but electrons and phonons always go together - sometimes it is a problem, as in the self-heating of electronic devices, and sometimes it is the whole point, as in thermoelectrics. My goal in this talk is to discuss the remarkably simple conceptual picture of electron transport at the nanoscale that has emerged from decades of work on experiments and sophisticated transport theory and simulations and to explore its application to thermal transport. Two central concepts are the Landauer approach and the McKelvey-Shockley two-flux form of the Boltzmann equation. I'll discuss the similarities and differences of electron and phonon transport and some new insights into thermal transport that come from using concepts from electronics. Finally, I'll identify some issues that need to be addressed if we are to develop the comprehensive conceptual and computational framework for electrothermal transport that is needed to describe modern nanodevices.

Biography: Mark Lundstrom is the Don and Carol Scifres Distinguished Professor of Electrical and Computer Engineering at Purdue University. He received Ph.D. from Purdue University in 1980 and BEE and MSEE degrees from the University of Minnesota in 1973 and 1974. Between his MSEE and Ph.D. degrees, he worked at Hewlett-Packard Corporation on integrated circuit process development and manufacturing. At Purdue, his research has explored a wide range of semiconductor devices, the physics of carrier transport, and the modeling and numerical simulation of devices. His current focus is on energy conversion devices such as solar cells and thermoelectric devices and on the physics of the ultimate transistor. Lundstrom was the founding director of the Network for Computational Nanotechnology and nanoHUB.org, a science gateway that now serves a worldwide nanotechnology community of more than 300,000 individuals. He currently leads NEEDS, an NSF and industry-funded, multi-university initiative focused on new-era electronics, and he leads the nanoHUB-U initiative for on-line education. Dr. Lundstrom is a fellow of the Institute of Electrical and Electronic Engineers (IEEE), the American Physical Society, and the American Association for the Advancement of Science (AAAS). He has received several awards for his teaching and research, and is a member of the U.S. National Academy of Engineering.

Host: EE-Electrophysics

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132

Audiences: Everyone Is Invited

Contact: Marilyn Poplawski