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EPR of triplet excitions in tetracene crystals: spin polarization and the role of singlet exciton fission

✍ Scribed by L. Yarmus; J. Rosenthal; M. Chopp


Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
574 KB
Volume
16
Category
Article
ISSN
0009-2614

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πŸ“œ SIMILAR VOLUMES


Rate constants of singlet exciton fissio
✍ E.L. Frankevich; V.I. Lesin; A.I. Pristupa πŸ“‚ Article πŸ“… 1978 πŸ› Elsevier Science 🌐 English βš– 410 KB

The. lifetime T of a correlated pair of triplet excitons has been determined from the linewidth of the RYDMR spectrum. Tbe value r = 7 X lO+ s obtained has been used to cak&te the rate constants of the singlet exciton fsion into a pair of triplet excitons in a tetracene single crystal. The fission w

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The photoexcitcd triplet states of chlorophyll a and b are studied by the EPR method at -85 K using modulated ii&t excitation. Both compounds show anomalous EPR line intensities and transient kinetics, indicating e!ectron spin polxi~ation (ESP) in the photoexcitcd triplet state. EPR studies, using h

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✍ Ryuzi Katoh; Masahiro Kotani πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 436 KB

Photoionization and optical absorption of singlet excitons in a t-stilbene crystal have been studied. The ionization effkiency of the singlet exciton is a constant over the energy range of 5.4-6.5 eV. This is another example indicating that autoionization after a rapid relaxation is a common behavio