Its luminescence quantum yield is 0.65 in basic ethanol, 0.49 in ethanol, 1.0, and 0.68 in 94 % ethanol.
42.
The efficiency of Type-II processes is dependent upon the triplet state lifetime " ? " T and the triplet quantum yield ( ?T ) of the photosensitiser.
43.
The diamagnetic complexes were characterised by relatively high fluorescence quantum yields, excited-singlet and triplet lifetimes and singlet oxygen quantum yields; in distinct contrast to the paramagnetic species.
44.
The diamagnetic complexes were characterised by relatively high fluorescence quantum yields, excited-singlet and triplet lifetimes and singlet oxygen quantum yields; in distinct contrast to the paramagnetic species.
45.
Certain ?-conjugated macrocycles, reported by Swager and co-workers at MIT, were also found to form J-aggregates and exhibited exceptionally high photoluminescence quantum yields.
46.
The typical assumption in determining the quantum yield is that all photons are absorbed on the semiconductor surface, and the quantum yield is referred to as the apparent quantum yield.
47.
The typical assumption in determining the quantum yield is that all photons are absorbed on the semiconductor surface, and the quantum yield is referred to as the apparent quantum yield.
48.
The typical assumption in determining the quantum yield is that all photons are absorbed on the semiconductor surface, and the quantum yield is referred to as the apparent quantum yield.
49.
The + 2 charged diamagnetic species appeared to exhibit a direct relationship between their fluorescence quantum yields, excited state lifetimes, rate of ISC and the atomic number of the metal ion.
50.
The relation between the quantum yield, the rate of charge transfer, k CT, and the electron / hole recombination rate, k R, is given by the following equation.
