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The Effects of Temperature on the Solid-Surface Luminescence Properties of Benzo(f)quinoline Adsorbed on Filter Paper

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Abstract:

Experimental values of fluorescence quantum yield, phosphorescence quantum yield, and phosphorescence lifetime were acquired at temperatures from 23° to –180°C for the protonated form of benzo(f)quinoline adsorbed on filter paper. From the experimental values, triplet formation efficiencies, rate constants for phosphorescence, and rate constants for the radiationless transition from the triplet state were calculated. The results showed the various interrelationships of the solid-surface radiative and nonradiative processes. In addition, the results indicated that the modulus of the solid matrix is an important factor in enhancing phosphorescence quantum yield.

Keywords: Luminescence spectroscopy; Solid-surface; Temperature variation

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702894202616

Affiliations: Chemistry Department, University of Wyoming, Laramie, Wyoming 82071

Publication date: May 1, 1989

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