Picosecond study on excimer formation in pyrene single crystals
β Scribed by R. Seyfang; E. Betz; H. Port; W. Schrof; H.C. Wolf
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 507 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0022-2313
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π SIMILAR VOLUMES
It is shown that the monomer fluorescence and the excimer fluorescence from a dilute pyrene solution in squalane at room temperature are mainly from "delayed" geminate pairs (Py-, S+) and (Py-, Py+ ), respectively, from the ODESR spectra observed at the monomer and the excimer fluorescence. The reco
The Β―uorescence of pyrenyl labelled polystyrene has been investigated. The ratio of excimer to monomer intensities (I e /I m ) is found to vary tortuously with increasing concentration (C) and displays two critical concentration points, C at about 3.2 Γ 10 Γ2 g ml Γ1 and C m at about 0.32 g ml Γ1 .