Photoelectric Properties of Film Composites Derived from Poly-N-Epoxypropylcarbazole and Zwitter-Ionic Dyes

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 photoe...

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Bibliographic Details
Published in:	Theoretical and experimental chemistry Vol. 55; no. 2; pp. 103 - 109
Main Authors:	Davidenko, N. A., Davidenko, I. I., Ishchenko, A. A., Kurdiukova, I. V., Mokrinskaya, E. V., Tonkopieva, L. S., Chuprina, N. G.
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-06-2019 Springer Springer Nature B.V
Subjects:	Additives Chemistry Chemistry and Materials Science Chemistry/Food Science Composite materials Current carriers Dyes Internal conversion Oligomers Photoconductivity Photoelectric effect Photoelectricity Photovoltaic effect croconate photoconductivity photogeneration polymer composites electron transport photovoltaics squarates
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Summary:	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.
ISSN:	0040-5760 1573-935X
DOI:	10.1007/s11237-019-09600-x