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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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