MRSEC Seminar: Excitons, Disorder, and Nonequilibrium Transport in Semiconductor Nanomaterials

  • COLUMBIA UNIVERSITY 530 West 120th Street New York, NY, 10027 United States

Prof. William A. Tisdale
Department of Chemical Engineering
Massachusetts Institute of Technology

Date: Tuesday, October 18, 2016
Time: 4:00 pm
Place: 750 CEPSR
Host: Xiaoyang Zhu
 

ABSTRACT

In nanostructured materials, the short length and time scales over which energy moves can present transport behavior that deviates from classical constitutive laws. Using a combination of ultrafast spectroscopy, time-resolved optical microscopy, and kinetic Monte Carlo simulation, I will show how these effects manifest in assemblies of colloidal quantum dots (QD) and atomically thin 2D semiconductors, which are promising components of next-generation photovoltaic and lighting technologies. In particular, we will explore the effect of structural and energetic disorder, the role of nanocrystal surface chemistry, and the self-organization of these nanomaterials into ordered superstructures.

BIOGRAPHY

Will Tisdale joined the Department of Chemical Engineering at MIT in 2012, where he is the Charles & Hilda Roddey Career Development Assistant Professor. His research program is focused on the development of nanoscale semiconductor materials for use in next-generation energy technologies. Will earned his B.S. in Chemical Engineering from the University of Delaware in 2005, his Ph.D. in Chemical Engineering from the University of Minnesota in 2010, and was a postdoc in the Research Laboratory of Electronics at MIT before joining the faculty in 2012. He is a recipient of the Presidential Early Career Award for Scientists and Engineers (PECASE), the DOE Early Career Award, the NSF CAREER Award, an Alfred P. Sloan Fellowship, and MIT’s Everett Moore Baker Award for Excellence in Undergraduate Teaching.


Web: http://web.mit.edu/tisdalelab

 

October 25
MRSEC Seminar