Quenching of the delayed fluorescence by charge carriers in crystals of anthracene—TCNB CT complex
✍ Scribed by J. Fünfschilling; M. Samoc; D.F. Williams
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 361 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The decrease in delayed fluorescence intensity in anthracene-tetracyanobenzene upon application of an electric field is investigated. It is shown, that photogenerated free carriers are responsible for the observed quenchkg, and rhat the entity quenched is an intermediate state between a triplet-pair state and a fluorescent singlet state_ A model is presented that identifies this state as a separated charge pair. This model can esplain the main feature of the observations, namely, the large quenching cross section, which is of the order of cross sections typical of carrier-carrier interactions_