Luminescence studies in polymers-II. Temperature effect on polyvinylcarbazole fluorescence
作者： C. David , M. Piens , G. Geuskens
DOI: 10.1016/0014-3057(72)90064-X
关键词: Luminescence 、 Fluorescence 、 Kinetic scheme 、 Dissociation (chemistry) 、 Polymer 、 Excimer 、 Analytical chemistry 、 Chemistry 、 Binding energy
摘要: Abstract Polyvinylcarbazole (PVCa) films and solutions emit normal excimer fluorescence between 77 425 K. The absolute (IM ID) relative (IM/ID) intensities emitted strongly depend on temperature. usual U-shaped curve is obtained for log IM/ID as a function of 1/T in the case polymer films. In solution, two minima corresponding to different excimers are observed. formation dissociation PVCa have been interpreted according kinetic scheme. binding energies high temperature respectively 4 2·8 kcal mole−1.
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