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Proceedings Paper

Charge separation in molecular compounds from the charge transfer states: density matrix approach
Author(s): Darius Abramavicius; Leonas Valkunas
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Paper Abstract

Classical and quantum models explaining fast charge separation from the initially excited charge transfer (CT) states is presented in this paper. According to our suggestion a substantial dipole moment is localized in the CT complex after its optical excitation. Being a strong local perturbation this electronic dipole induces the changes in the equilibrium positions of atoms and molecules in the vicinity of its surrounding. Some under-damped vibrational modes of the extended phonons at the very initial times can create the driving force for the charge transfer via the feedback of the nonrelaxed environment. This model is demonstrated in the framework of the modified Marcus approach and by using a quantum model.

Paper Details

Date Published: 8 August 2003
PDF: 9 pages
Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); doi: 10.1117/12.515661
Show Author Affiliations
Darius Abramavicius, Institute of Physics (Lithuania)
Leonas Valkunas, Institute of Physics (Lithuania)

Published in SPIE Proceedings Vol. 5122:
Advanced Organic and Inorganic Optical Materials
Andris Krumins; Donats Millers; Inta Muzikante; Andris Sternbergs; Vismants Zauls, Editor(s)

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