Quantum dots and dye-sensitized semiconductors for solar energy conversion: time-domain ab initio studies of the photoinduced dynamics

Saturday, November 1, 2008 - 12:00pm - 1:00pm
EE/CS 3-180
Oleg Prezhdo (University of Washington)
Harvesting and applications of solar energy requires an understanding of the dynamical response of novel materials on the nanometer scale. We have developed state-of-the-art non-adiabatic molecular dynamics techniques and implemented them within time-dependent density functional theory in order to model the ultrafast photoinduced processes in these materials at the atomistic level, and in real time. The talk will focus on the photo-initiated charge transfer at the molecule-semiconductor interfaces and multiple excitons which can be generated in semiconductor quantum dots in competition with various relaxation processes.
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