Effect of particle size and morphology on the properties of luminescence in ZnWO4 / V. M. Lisitsyn [et al.]

Уровень набора: Journal of Luminescence, Scientific JournalАльтернативный автор-лицо: Lisitsyn, V. M., Professor of Tomsk Politechnic University, candidate of physical and mathematical sciences, Russian physicist, 1939-, Viktor Mikhailovich;Valiev, D. T., specialist in the field of lightning engineering, Engineer of Tomsk Polytechnic University, 1987-, Damir Talgatovich;Tupitsyna, I. A.;Polisadova, E. F., specialist in the field of lighting engineering, associate Professor of Tomsk Polytechnic University, candidate of physico-mathematical Sciences, 1972-, Elena Fyodorovna;Oleshko, V. I., specialist in the field of lightning engineering, Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, 1948-, Vladimir Ivanovich;Lisitsyna, L. A.;Andryuschenko, L. A.;Yakubovskaya, A. G.;Vovk, O. M.Язык: английский.Страна: .Резюме или реферат: We investigated pulsed photoluminescence and pulsed cathodoluminescence in ZnWO4 crystals and composite materials based on dispersed powders of zinc tungstate in the polymer matrix. It is shown that the size of crystal particles affects the luminescence decay time in excitation by electron and laser radiation. The decay time obtained for the composite material with nanoparticles 25 nm and 100 nm in size is equal to 5 µs and 7 µs, respectively. Relative values of the light yield of composite containing zinc tungstate crystals in the form of rods are found to be larger in comparison with crystallites in the form of grains. The mechanisms of luminescence recombination in laser and electron excitation are discussed..Примечания о наличии в документе библиографии/указателя: [References: p. 135 (22 tit.)].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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[References: p. 135 (22 tit.)]

We investigated pulsed photoluminescence and pulsed cathodoluminescence in ZnWO4 crystals and composite materials based on dispersed powders of zinc tungstate in the polymer matrix. It is shown that the size of crystal particles affects the luminescence decay time in excitation by electron and laser radiation. The decay time obtained for the composite material with nanoparticles 25 nm and 100 nm in size is equal to 5 µs and 7 µs, respectively. Relative values of the light yield of composite containing zinc tungstate crystals in the form of rods are found to be larger in comparison with crystallites in the form of grains. The mechanisms of luminescence recombination in laser and electron excitation are discussed.

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