A polaron mechanism for the Y and E states of excimer crystals

Ten-Ming Wu*, David W. Brown, Katja Lindenberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We present a model of excimer formation in dimerized materials such as α-perylene. Exact diagonalization of a model Hamiltonian identifies the Y and E states inferred from excimer fluorescence spectra with antisymmetric and symmetric pair states of an exciton confined to a dimer. Our model gives rise to a phonon-assisted transition between the Y and E states which, through an application of the Fermi golden rule, is found to be thermally activated, consistent with experimental findings.

Original languageEnglish
Pages (from-to)245-247
Number of pages3
JournalJournal of Luminescence
Issue number1-6
StatePublished - 1 Jan 1990


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