Investigation of triplet state energy transfer in fluorene single crystals by a magnetic resonance method

✍ Scribed by Önder Pekcan

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 339 KB
• Volume: 59
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(78)85027-1

✦ Synopsis

The electron paramagnetic resonamx absorption spectrum of the triplet state cf pyrene-d,,, in ffuorene has been investigated in the temperature range 130-300 K-Rates of triplet state signal decays after cessation of iUumination have been determined. lXe resuits have been interpreted in terms of a particular model of energy transfer processes in this crystal. The impurity thermal energy Ievel was obtained from the temperature dependent rate constants of the pyrened 0 triplet state. It is infer:ed that impurities pIay a dominant roIe in the triplet-state energy transfer mechanism in this crystal system.