Effect of particle size and morphology on the properties of luminescence in ZnWO<sub>4</sub>

Abstract

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.

Original language	English
Pages (from-to)	130-135
Number of pages	6
Journal	Journal of Luminescence
Volume	153
DOIs	https://doi.org/10.1016/j.jlumin.2014.03.024
Publication status	Published - 1 Sep 2014

Keywords

Decay kinetics
Scintillation material
Time-resolved luminescence
ZnWO

ASJC Scopus subject areas

Biophysics
Chemistry(all)
Atomic and Molecular Physics, and Optics
Biochemistry
Condensed Matter Physics

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10.1016/j.jlumin.2014.03.024

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Effect of particle size and morphology on the properties of luminescence in ZnWO₄. / Lisitsyn, V. M.; Valiev, D. T.; Tupitsyna, I. A.; Polisadova, Elena Fedorovna ; Oleshko, V. I.; Lisitsyna, L. A.; Andryuschenko, L. A.; Yakubovskaya, A. G.; Vovk, O. M.

In: Journal of Luminescence, Vol. 153, 01.09.2014, p. 130-135.

Research output: Contribution to journal › Article › peer-review

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title = "Effect of particle size and morphology on the properties of luminescence in ZnWO4",

abstract = "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.",

keywords = "Decay kinetics, Scintillation material, Time-resolved luminescence, ZnWO",

author = "Lisitsyn, {V. M.} and Valiev, {D. T.} and Tupitsyna, {I. A.} and Polisadova, {Elena Fedorovna} and Oleshko, {V. I.} and Lisitsyna, {L. A.} and Andryuschenko, {L. A.} and Yakubovskaya, {A. G.} and Vovk, {O. M.}",

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doi = "10.1016/j.jlumin.2014.03.024",

language = "English",

volume = "153",

pages = "130--135",

journal = "Journal of Luminescence",

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T1 - Effect of particle size and morphology on the properties of luminescence in ZnWO4

AU - Lisitsyn, V. M.

AU - Valiev, D. T.

AU - Tupitsyna, I. A.

AU - Polisadova, Elena Fedorovna

AU - Oleshko, V. I.

AU - Lisitsyna, L. A.

AU - Andryuschenko, L. A.

AU - Yakubovskaya, A. G.

AU - Vovk, O. M.

PY - 2014/9/1

Y1 - 2014/9/1

N2 - 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.

AB - 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.

KW - Decay kinetics

KW - Scintillation material

KW - Time-resolved luminescence

KW - ZnWO

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