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Crystal–Impurity Energy Transport by Molecular Excitons in the Wave‐Like Limit I. Capture Mechanism
Author(s) -
Markvart T.
Publication year - 1976
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220730238
Subject(s) - exciton , impurity , crystal (programming language) , limit (mathematics) , diffusion , phonon , condensed matter physics , biexciton , chemical physics , physics , chemistry , quantum mechanics , mathematical analysis , mathematics , computer science , programming language
Abstract The treatment, by conventional diffusion methods, of exciton transport from the host crystal to impurities is proved to be valid only in the limit of strong exciton–phonon interaction. I n the present work a possible solution to the problem of crystal–impurity exciton transport is presented in the opposite limit. The assumption of rapid exciton transport within the crystal is used to explain the capture mechanism. Other assumptions are used to bring the final result to a form similar to Forster's for the electronic energy transfer between two molecules.