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Photoconductivity of film composites based on branched carbazolyl oligomers with different numbers of terminal groups

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Abstract

Peculiarities of photoconductivity of film composites based on branched carbazolyl-containing oligomers with a branching center on a silicon atom have been studied. An increase in the photocurrent and a decrease in the photoresponse time have been found in the film composites on passing to the oligomers with larger numbers of branches (from 2 to 3 and 4). It is assumed that the increase in the photoconductivity is determined by the increase in the effective mobility of the holes. A phenomenological model describing the effects observed is proposed.

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Correspondence to N. A. Davidenko.

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Original Russian Text © E.V. Mokrinskaya, S.L. Studzinsky, V.A. Pavlov, N.G. Chuprina, V.V. Kravchenko, A.I. Marinin, L.S. Tonkopieva, I.I. Davidenko, N.A. Davidenko, 2017, published in Khimiya Vysokikh Energii, 2017, Vol. 51, No. 4, pp. 278–283.

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Mokrinskaya, E.V., Studzinsky, S.L., Pavlov, V.A. et al. Photoconductivity of film composites based on branched carbazolyl oligomers with different numbers of terminal groups. High Energy Chem 51, 263–268 (2017). https://doi.org/10.1134/S0018143917040117

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  • DOI: https://doi.org/10.1134/S0018143917040117

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