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6 February 1997 Optical properties of films built up by polar molecules
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Proceedings Volume 2968, Optical Organic and Semiconductor Inorganic Materials; (1997)
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia
The origin of the excited states and the spectroscopic features of polar molecular films and crystals of N,N- dimethylaminobenzylidene 1,3-indandione (DMABI) was considered. The formation of charge transfer exciton states in the absorption and luminescence spectra by increase of the thicknesses of DMABI films was observed. The evidence of a strong exciton-phonon interaction and its effects on the exciton absorption and luminescence spectra was discovered. The coexistence of free and self-trapped excitons at elevated temperatures was found in DMABI films. The dynamics of both shallow short-lived and deeply trapped long-lived self-trapped exciton states in various films and crystal of DMABI was discussed.
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Saulius Jursenas, A. Gruodis, G. Kodis, Leonas Valkunas, I. Kaulach, and Edgar A. Silinsh "Optical properties of films built up by polar molecules", Proc. SPIE 2968, Optical Organic and Semiconductor Inorganic Materials, (6 February 1997);

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