Abstract
It is found that one of the types of molecular organic nanocrystals, the so-called J-aggregates, is able to modify optoelectronic properties of electroactive polymers. It is intrinsic that the polyaniline interpolymeric complex, known as p-type semiconductor, turns into electroluminescent material in the presence of J-aggregates of 3,3-di(gamma-sulfopropyl)-5,5-dichlorotiamonomethincyanine triethylammonium salt. During the studying of new organic light-emitting diode structures, in which the polyaniline/J-aggregates polymeric composite forms both recombination and emitting layers, a polyaniline intrinsic electroluminescence spectrum is obtained. The electroluminescence band completely coincides with the polyaniline photoluminescence spectrum; it has maximum at 400 nm. The electroluminescence mechanism in the studied nanocomposites is discussed.
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Original Russian Text © E.I. Mal’tsev, D.A. Lypenko, O.M. Perelygina, V.F. Ivanov, O.L. Gribkova, M.A. Brusenrseva, A.V. Vannikov, 2008, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2008, Vol. 44, No. 5, pp. 478–481.
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Mal’tsev, E.I., Lypenko, D.A., Perelygina, O.M. et al. Molecular nanocrystals in polyaniline-based light-emitting diode structures. Prot Met 44, 443–446 (2008). https://doi.org/10.1134/S0033173208050044
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DOI: https://doi.org/10.1134/S0033173208050044