Geminate Pair Recombination in Sensitized Polymers (Monte-Carlo simulations)
作者:
Darius Abramavicius,
Vidmantas Gulbinas,
Arvydas Ruseckas,
Algimantas Undzenas,
Leonas Valkunas,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1998)
卷期:
Volume 324,
issue 1
页码: 275-283
ISSN:1058-725X
年代: 1998
DOI:10.1080/10587259808047165
出版商: Taylor & Francis Group
关键词: sensitized polymers;geminate recombination;photogeneration
数据来源: Taylor
摘要:
Dynamics of the geminate charge pair recombination in the sensitized poly-N-epoxypropylcarbazole films was described by the Monte-Carlo simulations. The model was based on the assumption of a very fast charge separation over several carbazolyls and further slow recombination governed by the diffusive motion of the hole on an energetically and structurally irregular lattice. Both diagonal and off-diagonal disorder are taken into account by analyzing the experimental data. It is concluded that for the ply-N-epoxypropylcarbazole polymer sensitized with trinitrofluorenone the initial separations of the charge pairs are distributed exponentially with the mean value of5lattice constants and the widths of the diagonal and off-diagonal disorders are 0.04eVand 0.3 times the lattice constant, respectively.
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