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On the theory of excitons in solids

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
8
Identifiers
DOI: 10.1016/0022-3697(59)90307-5

Abstract

Abstract The different kinds of excitons are considered taking into account the electron-electron interaction as well as the electron-lattice interaction. Some earlier results published by T oyozawa, H eller and M arcus are obtained as special cases. A refined theory of dielectric screening due to lattice vibrations is given. Optical properties of excitons with large orbital radii are discussed. Certain selection rules as well as a possible explanation of dichroitic effects are given and compared with the corresponding ones of impurity atoms. Finally a quantitative theory of the elementary process of energy transfer by excitons is given and compared with the resonance energy transfer process investigated by Dexter.

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