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

V. M. Lisitsyn, D. T. Valiev, I. A. Tupitsyna, Elena Fedorovna Polisadova, V. I. Oleshko, L. A. Lisitsyna, L. A. Andryuschenko, A. G. Yakubovskaya, O. M. Vovk

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

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 languageEnglish
Pages (from-to)130-135
Number of pages6
JournalJournal of Luminescence
Volume153
DOIs
Publication statusPublished - 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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