Electronic energy transfer in an impurity band

Klaus Godzik*, Joshua Jortner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


In this paper we explore the dynamics of triplet electronic energy transfer in an impurity band of a substitutionally-disordered material. The general characteristics of the solutions of the master equation in the strong scattering regime have been studied, leading to a generalized diffusion equation that contains a memory term, which results in a time-dependent diffusion coefficient. Approximate results for the average density of excitation were derived within the framework of the pair-approximation, resulting in explicit expressions for the time-resolved spectral diffusion, the mean-square displacement, as well as the time-dependent diffusion coefficient for electronic transfer processes induced by exchange interactions.

Original languageEnglish
Pages (from-to)227-237
Number of pages11
JournalChemical Physics
Issue number2
StatePublished - 15 Apr 1979


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