Calorimetric determination of the 9,10-diphenyl-anthracene fluorescence quantum yield

Abstract A modified calorimetric fluorescence quantum yield method which allows yield determinations on optically dilute samples has been used to determine fluorescence quantum yields of 9,10-diphenylanthracene (DPA) in cyclohexane (ϕf = 0.955) and in ethanol (ϕf = 0.885) and of 2-2′-(1,4-phenylene)bis[5-phenyloxazole] (POPOP) in cyclohexane (ϕf = 0.975) and in ethanol (ϕf = 0.91). It has also been demonstrated that the DPA fluorescence quantum yields and lifetimes vary significantly from one solvent to another.

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