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Studies of the phosphorescence lifetime of carbazole in polymer matrices

✍ Scribed by Helen Williamson; James R. MacCallum

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
276 KB
Volume
29
Category
Article
ISSN
0014-3057

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✦ Synopsis

The phosphorescence lifetime of carbazole in various homopolymer matrices was found to be highly dependent on additive concentration, temperature and supporting matrix. A partially deuterated polystyrene matrix caused a decrease in lifetime relative to that obtained for carbazole in the absence of deuterated species, and no significant quenching occurred on the addition of 3-bromocarbazole and Pr[18-crown-6] (NO 2)3 to the films. The results have been interpreted in terms of energy transfer from the additive to the polymer, and, in the case of the deuterated matrix, the possibility of energy migration is proposed.

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