Reindl, S. and Penzkofer, Alfons (1996) Triplet quantum yield determination by picosecond laser double-pulse fluorescence excitation. CHEMICAL PHYSICS, 213 (1-3). pp. 429-438. ISSN 0301-0104, 1873-4421
Full text not available from this repository.Abstract
The quantum yields of S-1 --> T-1 triplet formation of some organic dyes are determined by picosecond double-pulse laser excitation and time-resolved fluorescence detection. The second pulse fluorescence signal is reduced due to first pulse induced singlet-triplet intersystem crossing. Disturbances due to higher excited state triplet-singlet back transfer are minimized by proper laser pulse duration and pulse energy density adjustment. The saturation energy density of triplet ground state depopulation has to be higher than the saturation energy density of singlet ground state depopulation, and the energy density of the second excitation pulse should be comparable to or less than the saturation energy density of ground state depopulation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIGHT-PULSES; EOSIN-Y; ABSORPTION; DYE; PHOTOCHEMISTRY; PHOTOPHYSICS; MOLECULES |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 May 2023 10:33 |
| Last Modified: | 25 May 2023 10:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51278 |
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