Identification of Triplet States in Carotenoids by Intracavity Absorption Spectroscopy and Measurements of Delayed Fluorescence

Identification of Triplet States in Carotenoids by Intracavity Absorption Spectroscopy and Measurements of Delayed Fluorescence

Owing to the low quantum yield of phosphorescence, triplet states of carotenoids have been very difficult to identify. These states can be characterized by intracavity absorption spectroscopy, which allows the direct measurement of the spin‐forbidden singlet–triplet transitions in low concentrated s...

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Veröffentlicht in:Angewandte Chemie International Edition 1999-09, Vol.38 (17), p.2573-2576
Hauptverfasser: Bettermann, Hans, Ulrich, Lars, Domnick, Gabriele, Martin, Hans-Dieter
Format: Artikel
Sprache:eng
Schlagworte:
Carotenoids
Fluorescence spectroscopy
Laser spectroscopy
UV/Vis spectroscopy
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Zusammenfassung:Owing to the low quantum yield of phosphorescence, triplet states of carotenoids have been very difficult to identify. These states can be characterized by intracavity absorption spectroscopy, which allows the direct measurement of the spin‐forbidden singlet–triplet transitions in low concentrated solutions, and by delayed fluorescence measurements.
ISSN:1433-7851
1521-3773
DOI:10.1002/(SICI)1521-3773(19990903)38:17<2573::AID-ANIE2573>3.0.CO;2-3