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

Simon M. Pimblott; A. Mozumder

doi:10.1016/0009-2614(91)85157-R

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

Simon M. Pimblott
, A. Mozumder

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

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 1,4-dibromonaphthalene, however, it is not appropriate for pyrene or trans-stilbene.

Original language	English
Pages (from-to)	497-502
Number of pages	6
Journal	Chemical Physics Letters
Volume	180
Issue number	5
DOIs	https://doi.org/10.1016/0009-2614(91)85157-R
State	Published - May 31 1991
Externally published	Yes

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title = "Triplet-triplet annihilation rate in anisotropic crystals: diffusion and non-diffusion controlled cases",

abstract = "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 1,4-dibromonaphthalene, however, it is not appropriate for pyrene or trans-stilbene.",

author = "Pimblott, \{Simon M.\} and A. Mozumder",

year = "1991",

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doi = "10.1016/0009-2614(91)85157-R",

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journal = "Chemical Physics Letters",

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T1 - Triplet-triplet annihilation rate in anisotropic crystals

T2 - diffusion and non-diffusion controlled cases

AU - Pimblott, Simon M.

AU - Mozumder, A.

PY - 1991/5/31

Y1 - 1991/5/31

N2 - 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 1,4-dibromonaphthalene, however, it is not appropriate for pyrene or trans-stilbene.

AB - 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 1,4-dibromonaphthalene, however, it is not appropriate for pyrene or trans-stilbene.

UR - https://www.scopus.com/pages/publications/0009808004

U2 - 10.1016/0009-2614(91)85157-R

DO - 10.1016/0009-2614(91)85157-R

M3 - Article

AN - SCOPUS:0009808004

SN - 0009-2614

VL - 180

SP - 497

EP - 502

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5

ER -

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

Abstract

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