✦ LIBER ✦

Triplet—triplet annihilation rate in anisotropic crystals: diffusion and non-diffusion controlled cases

✍ Scribed by Simon M. Pimblott; A. Mozumder

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 538 KB
Volume: 180
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)85157-r

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✦ Synopsis

The geminate survival probability against triplet-triplet annihilation has been calculated for several aromatic crystals by solving the adjoint to the diffusion equation and the homogeneous triplet-triplet annihilation rates have been evaluated through the integral relationship between it and the survival probability. The results show that a hopping model of exciton diffusion with annihilation at adjacent sites is adequate for anthracene, naphthalene and I ,4-dibromonaphthalene, however, it is not appropriate for pyrene or trans-stilbene.

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