The photoconductive and photovoltaic properties of film composites derived from poly-Nepoxypropylcarbazole and additives of some indole derivative dyes, namely, squaraine, thiosquaraine, and croconaine, were studied. Such composites were found to have hole-type photoconductivity. The internal photoelectric effect is a function of the photogeneration of charge carriers from the dye molecules and transport of the holes along the donor fragments of the polymer matrix. The photovoltaic effect decreases in going from squarate to thiosquarate and croconate. This behavior is attributed to greater internal conversion due to the shift of the absorption region of the dyes in the near-IR spectral range.
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Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 55, No. 2, pp. 95-100, March-April, 2019.
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Davidenko, N.A., Davidenko, I.I., Ishchenko, A.A. et al. Photoelectric Properties of Film Composites Derived from Poly-N-Epoxypropylcarbazole and Zwitter-Ionic Dyes. Theor Exp Chem 55, 103–109 (2019). https://doi.org/10.1007/s11237-019-09600-x
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DOI: https://doi.org/10.1007/s11237-019-09600-x