Engineering materials and devices at small spatial and temporal scales

Wednesday, October 18, 2017
12:00 PM to 1:00 PM
Mulva Auditorium, EER 0.904
Free and open to the public

Many, perhaps most, advances in solid-state materials and device engineering emerge from improvements in our understanding of and control over material composition, structure, and behavior at ever finer spatial and temporal scales. This idea is at the core of our laboratory’s research and of a newly established center for materials research and education at the University of Texas at Austin. We will briefly introduce a newly funded Materials Research Science and Engineering Center (MRSEC) at UT Austin, the Center for Dynamics and Control of Materials, that will explore approaches for achieving dynamically controllable and reconfigurable material functionality for applications in photonics, energy storage, information processing, and related areas. We will then discuss a few examples of recent work in our laboratory that has been motivated by the desire to characterize, understand, and exploit new aspects of material behavior at the nanoscale, and to apply concepts from semiconductor electronic device engineering to engineering challenges in solar energy harvesting and storage. These examples will include proximal probe-based characterization of strain distributions and optical properties at the nanoscale in semiconductor nanowires and two-dimensional materials; elucidation of new mechanisms for electromechanical materials response at the nanoscale; and the application of insights from nanoelectronic device engineering to structures for solar-powered splitting of water molecules into hydrogen and oxygen.

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Ed Yu

Edward Yu

The University of Texas at Austin

Prof. Yu is a Professor of Electrical and Computer Engineering and holds the Judson S. Swearingen Regents Chair in Engineering. Professor Yu has been the recipient of an NSF CAREER Award, ONR Young Investigator Award, Alfred P. Sloan Research Fellowship, and UCSD ECE Graduate Teaching Award, and is an AVS and IEEE Fellow.  He has served as a member and Chair of the DARPA Defense Sciences Research Council (DSRC), and currently serves at UT Austin as founding Director of the Center for Dynamics and Control of Materials: an NSF MRSEC.  Current research interests in his laboratory include photovoltaics and other technologies for energy harvesting and generation; nanoscale imaging and characterization techniques; and solid-state nanoscience and nanotechnology generally.  The results of his research have been reported in over 180 archival journal publications.