Gratz, H. and Penzkofer, Alfons (1999) Triplet-triplet absorption of some organic molecules determined by picosecond laser excitation and time-delayed picosecond light continuum probing. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 127 (1-3). pp. 21-30. ISSN 1010-6030,
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The triplet-triplet absorption cross-section spectra of eosin Y, erythrosin B, rose bengal and C(70) are determined in the wavelength range from 390 to 1600 nm. The T(1) triplet state is populated by S(1)-->T(1) intersystem crossing after singlet state excitation with intense picosecond pump pulses (wavelength 527 nm, duration 6 ps). The triplet-triplet absorption is probed with picosecond spectral light continua passing the samples after excited singlet state relaxation (time delay 20 ns), Absolute triplet-triplet absorption cross-sections are obtained by numerical simulation of the absorption dynamics. (C) 1999 Elsevier Science S.A. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXCITED-STATE ABSORPTION; PHOTOPHYSICAL PROPERTIES; EXTINCTION COEFFICIENTS; CONDENSED PHASES; EOSIN-Y; C-70; C-60; SPECTROSCOPY; FULLERENES; BENZENE; triplet-triplet absorption; picosecond laser excitation; eosin Y; erythrosin B; rose bengal; fullerene molecule C(70) |
| 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: | 20 Dec 2022 11:24 |
| Last Modified: | 20 Dec 2022 11:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48961 |
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