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Chemical Engineering Seminar

Thursday, March 10, 2016
4:00pm to 5:00pm
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Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Excitons, disorder, and nonequilibrium transport in semiconductor nanomaterials
William A. Tisdale, Charles and Hilda Roddey Career Development Professor, Chemical Engineering, Massachusetts Institute of Technology,

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), which are promising components of next-generation energy conversion 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.

For more information, please contact Martha Hepworth by email at [email protected].