Abstract
The fluorescence properties (lifetimes and spectra) of anthracene and fluoranthene were found to be independent of temperature in the ranges 80–110°C and 60–95°C, respectively, in vacuum and in helium, nitrogen, and air atmospheres. The fluorescence lifetimes and spectra were also measured for these two compounds individually adsorbed on silica, alumina, magnetite, or hematite. In all cases, the emission profiles for the adsorbed aromatic hydrocarbon were red-shifted with respect to the gas-phase spectra. The fluorescence lifetimes for both anthracene and fluoranthene increased for the different supports in the order alumina < silica < magnetite < hematite.
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