✦ LIBER ✦

Experimental determination of the triplet exciton intermolecular interaction matrix element and the exciton-phonon scattering rate in molecular crystals

✍ Scribed by D.D. Dlott; M.D. Fayer

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 680 KB
Volume: 41
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(76)80816-0

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✦ Synopsis

An experimental method involving the temperature dependence of the intensity of trap emission is employed to determine the sign and magnitude of the nearest-neighbor intermolecular interaction matrix element responsible for triplet exciton transport and the number of wave vector states comprising the triplet exciton band in 1,2,4,%tetrachlorobenzene. These quantities are utilized to obtain Ta(T) from previously reported ESR data. Using ?"a(rj which is related to the rate of exciton inelastic scattering, the exciton transport coherence length is calculated.