XVIth International Workshop on
Quantum Systems in
Chemistry and Physics
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Time-domain ab initio studies of excitation dynamics in semiconductor quantum dots
Oleg Prezhdo
University of Rochester
Solar energy applications require understanding of dynamical response of novel materials on nanometer scale. Our state-of-the-art non-adiabatic molecular dynamics techniques, implemented within time-dependent density functional theory, allow us to model such response at the atomistic level and in real time. The talk will focus on single and multiple exciton generation, relaxation, annihilation and dephasing in semiconductor quantum dots.

1. O. V. Prezhdo, “Multiple excitons and electron-phonon bottleneck in semiconductor quantum dots: Insights from ab initio studies”, Chem. Phys. Lett. – Frontier Article, 460, 1 (2008)
2. O. V. Prezhdo “Photoinduced dynamics in semiconductor quantum-dots: insights from time-domain ab initio studies”, Acc. Chem. Res., 42, 2005 (2009)
3. A. B. Madrid, H.-D. Kim, O. V. Prezhdo, “Phonon-induced dephasing of excitons in silicon quantum dots: multiple exciton generation, fission and luminescence”, ACS-Nano, 3, 2487 (2009)
4. C. M. Isborn, O. V. Prezhdo, “Quantum dot charging quenches multiple exciton generation: first-principles calculations on small PbSe clusters”, J. Phys. Chem. C, 113, 12617 (2009)
5. S. V. Kilina, D. S. Kilin, O. V. Prezhdo, “Breaking the phonon bottleneck in PbSe and CdSe quantum dots: time-domain density functional theory of charge carrier relaxation”, ACS-Nano, 3, 93 (2009).
6. S. A. Fischer, A. B. Madrid, C. M. Isborn, O. V. Prezhdo, “Multiple exciton generation in small Si clusters: A high-level, ab initio study”, J. Phys. Chem. Lett., 1, 232 (2010).


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Accommodation | Location and Access | Previous Workshops | ISTCP-VII | Photos