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17 December 1999 J-aggregate electroluminescence in polymer matrices
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Cyanine dye electroluminescence was observed in single layer light-emitting diodes based on electron-hole conducting polymers. The appearance of light emission in the visible range depended on the reduction/oxidation potentials of the dyes used. In polymer systems, the electroluminescence of cyanine dye J-aggregate nanocrystalline phase was detected for the first time. J-aggregate/polymer composites exhibiting intense absorption band with a maximum in the red range were developed on the base of polyimides and a copolymer coformed from phenylacetylene and 4-methylcoumarin-4-pentynoate doped with the dye luminophores. Efficient electrolumunescence was revealed in these systems. It was demonstrated that J- aggregates play an active role in charge carrier transport in the composite materials. In particular, anthracene-containing polyimides exhibiting electron-hole transport appeared to be appropriate media for the generation of J-aggregate electroluminescence.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eugene I. Mal'tsev, Dmitry A. Lypenko, Boris I. Shapiro, George Harry W. Milburn, Jeffrey Wright, Andre Hendriksen, Vladimir I. Berendyaev, Boris V. Kotov, and Anatoly V. Vannikov "J-aggregate electroluminescence in polymer matrices", Proc. SPIE 3797, Organic Light-Emitting Materials and Devices III, (17 December 1999);

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