Effect of Polymer Molecular Structure on Photosensitivity of Composites Films Based on Infra-Red Polymethine Dye

The main results of studies of the effect of a polymer molecular structure on the photosensitivity of composites films based on infra-red polymethine dye photosensitive in a wide spectral range including the near IR region are presented. The highest photosensitivity is observed among the studied com...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Pa. : 2003), 2011-01, Vol.536 (1), p.99/[331]-106/[338]
Main Authors: Vertsimakha, Ya, Verbitsky, A., Ishchenko, A., Syromyatnikov, V., Pomaz, I.
Format: Article
Language:English
Subjects:
Aggregates
Crystals
Dyes
Infrared radiation
Liquid crystals
Molecular structure
Photoconverters
Photosensitivity
photovoltage
polymer composites
Polymer matrix composites
polymethine dyes
Spectra
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Summary:The main results of studies of the effect of a polymer molecular structure on the photosensitivity of composites films based on infra-red polymethine dye photosensitive in a wide spectral range including the near IR region are presented. The highest photosensitivity is observed among the studied composites in that with a polyphenylenevinylene polymer matrix. The basic reason for high integral photosensitivity of these composites is the formation of aggregates, for which the energy and efficiency of the photogeneration of charge carriers are comparable or higher than those for quasiisolated molecules of polymethine dyes. The studied polymer composites of polymethine dyes can be used as near IR radiation sensors (800-1400 nm) and IR photoconverters including solar cells.
ISSN:1542-1406
1563-5287
DOI:10.1080/15421406.2011.538312