Singlet exciton diffusion and exciton quenching in phenanthrene single crystals
β Scribed by D. Haarer; G. Castro
- Book ID
- 107796834
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 332 KB
- Volume
- 12-13
- Category
- Article
- ISSN
- 0022-2313
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## Abstract The fluorescence quenching under high excitation intensities has been studied in anthracene crystals. The singletβsinglet annihilation constant of (1 Β± 0.5) Γ 10^β8^ cm^3^ s^β1^ is calculated from the quenching of fluorescence induced by a nitrogen 16 ns pulse laser (Ξ» = 3371 Γ ). The ma
A picosecond laser system has been employed to study the kmetics of singlet evciton energy transfer m p-terphenyl single crystals doped with tetracene over the temperature range 77-300 K. First-order kinetics prevail and exciton migration from host to guest is controlled by thermal activation over a
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