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Physical Review

Possibility of Luminescent Quantum Yields Greater than Unity

David L. Dexter

Published Nov 1, 1957• 267 citations
Publisher

Abstract

It is shown that an excited sensitizer can transfer its energy simultaneously to two activators, under suitable conditions, leading to two emitted photons per incident higher energy photon. The probability of this transfer process is computed, and the process is shown to be experimentally feasible.
DOI
10.1103/physrev.108.630

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