Excited singlet state kinetics on a subnanosecond time-scale |
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Authors: | Horn-Bond Lin Michael Topp |
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Affiliation: | Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA |
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Abstract: | It is possible to study directly the absorption time-profiles of short-lived excited singlet states by sampling the transient excitation spectra for fluorescence from upper states. This approach has many advantages over direct absorption measurements, since the effects of triplet state absorption can be suppressed and the population time-profiles of excited singlet states can be studied in detail. The first direct measurements are reported of singlet state absorption time profiles in a number of aromatic aza- and carbonyl compounds. |
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