Molecular nanocrystals in polyaniline-based light-emitting diode structures

作者：Mal'tsev E I^*; Lypenko D A; Perelygina O M; Ivanov V F; Gribkova O L; Brusentseva M A; Vannikov A V

来源：Protection of Metals, 2008, 44(5): 443-446.

DOI：10.1134/S0033173208050044

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.

• 出版日期2008-9