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Proceedings Paper

Excited state dynamics of N-(4-azaindan-1,3-dion-2-yl)pyridinium betaine in solutions
Author(s): Renata Karpicz; Vidmantas Gulbinas; Leonas Valkunas; Ojars Neilands; Inta Muzikante
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Paper Abstract

The excited state dynamics of N-(4-azaindan-1,3-dion-2-yl)pyridinium betaine (4N-IPB) in various solvents were studied using steady state absorption, fluorescence, and transient absorption measurements. The 4N-IPB molecules in solutions show weak fluorescence and possess a very large Stokes-shift of the fluorescence band even in non-polar solvents with low dielectric constants. The relaxation rate of 4N-IPB in alcohols faintly depends on the solvent viscosity. The excited state relaxation mechanism involving two excited states is similar to that of the IPB molecule, however the excited state relaxation of 4N-IPB is slightly faster.

Paper Details

Date Published: 8 August 2003
PDF: 6 pages
Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); doi: 10.1117/12.515660
Show Author Affiliations
Renata Karpicz, Institute of Physics (Lithuania)
Vidmantas Gulbinas, Institute of Physics (Lithuania)
Leonas Valkunas, Institute of Physics (Lithuania)
Ojars Neilands, Riga Techinical Univ. (Latvia)
Inta Muzikante, Institute of Physical Energetics (Latvia)

Published in SPIE Proceedings Vol. 5122:
Advanced Organic and Inorganic Optical Materials
Andris Krumins; Donats Millers; Inta Muzikante; Andris Sternbergs; Vismants Zauls, Editor(s)

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