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Relative fluorescence quantum yields using an integrating sphere. The quantum yield of 9,10-diphenylanthracene in cyclohexane

✍ Scribed by William R. Ware; William Rothman

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 502 KB
Volume: 39
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(76)80301-6

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✦ Synopsis

A new instrument intended for the measurement of relative fluorescence quantum yields is described. This instrument incorporates an integrating sphere to eliminate corrections due to polarization and to index of refraction phenomena. The primary standard was quinine bisulphate in 1'N H2SO4. Quantum yields are reported for quinine bisulphate (0.1 N H2S041, as well as diphenylantiracene, dicyanoanthracenc and tetraphenylbutadiene, all in cyclohexane. T!Gs work supports the contention that for diphenylanthracene in cyclohexane the quantum yield of fluorescence is 1.00 to within fwe percent.

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Fluorescence lifetimes and relative quantum yields of 9,10-diphenylanthracene in dilute solutions of cyclohexane and benzene

✍ D.J.S. Birch; R.E. Imhof 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 351 KB

The lifetimes of 9,10\_diphenylantllracenein dilute solutions ol cyclotexane and benzene at 25°C have been found to k 7.58 2 0.04 and 6.95 \* 0.04 ns respccrively. hleasuwmcnts of the relative quanrun yields>how that the dependenca ': \_: on the solvent is caused by an incseased piobnbility for rmnk