Abstract
Excitation energy transport mechanism of flavomononucleotide polyvinyl alcohol films is studied. Excitation wavelength and temperature dependences of fluorescence spectra and quantum yields for different concentrations of the dye are investigated. These measurements together with those of absorption reveal that dimers are imperfect traps for excitation energy and that the energy transfer can occur both in the forward and in the reverse direction. It was found that, contrary to liquid solutions, the dimerization constant of flavomononucleotide in polyvinyl alcohol films does not depend on temperature and that the irregularities observed can be explained by the temperature-dependent changes in the quantum yield of the monomer–dimer system and the effect of inhomogeneous orientation broadening of energy levels.
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Bojarski, P., Grajek, H., Żurkowska, G. et al. Excitation Energy Transport in a Concentrated System of Flavomononucleotide in Polyvinyl Alcohol Films. Journal of Fluorescence 9, 391–396 (1999). https://doi.org/10.1023/A:1020556628801
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DOI: https://doi.org/10.1023/A:1020556628801