Exciton transfer in organic-semiconductor nanostructures

PHYS 559

Dmitri S. Kilin, dkilin@gmail.com, Quantum Theory Project, University of Florida, Gainesville, FL 32607, Kiril Tsemekhman, kirilts@u.washington.edu, Department of Chemistry, Univeristy of Washington, Box 351700, Seattle, WA 98195, Eduard I. Zenkevich, Laboratory of Molecular Photonics, Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus, F.Skaryna Avenue 70, Minsk, 220072, Belarus, and Svetlana V. Kilina, SKILINA@U.WASHINGTON.EDU, Department of Chemistry, University of Washington, Seattle, WA 98195-1700.
Photoexcitation on core-shell quantum dot is transfered to surface adsorbed porphyrin dye via Foerster mechanism. Reduced density matrix time propagation based on ab-initio data show that phonon-induced relaxation of an excitation controls direction and irreversibility of the transfer on nanosecond time scale. The results are potentially applicable to improvennt of photodynamic therapy.

 

Poster Session
7:30 PM-10:00 PM, Wednesday, 13 September 2006 Moscone Center -- Hall D, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Sci-Mix

Division of Physical Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006