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Proceedings Paper

Optical properties of films built up by polar molecules
Author(s): Saulius Jursenas; A. Gruodis; G. Kodis; Leonas Valkunas; I. Kaulach; Edgar A. Silinsh
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Paper Abstract

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.

Paper Details

Date Published: 6 February 1997
PDF: 10 pages
Proc. SPIE 2968, Optical Organic and Semiconductor Inorganic Materials, (6 February 1997); doi: 10.1117/12.266840
Show Author Affiliations
Saulius Jursenas, Vilnius Univ. (Lithuania)
A. Gruodis, Vilnius Univ. (Lithuania)
G. Kodis, Institute of Physics (Lithuania)
Leonas Valkunas, Vilnius Univ. and Institute of Physics (Lithuania)
I. Kaulach, Institute of Physical Energetics (Latvia)
Edgar A. Silinsh, Institute of Physical Energetics (Latvia)

Published in SPIE Proceedings Vol. 2968:
Optical Organic and Semiconductor Inorganic Materials
Edgar A. Silinsh; Arthur Medvids; Andrejs R. Lusis; Andris O. Ozols, Editor(s)

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