1. Influence of Accidental Impurities on the Spectroscopic and Luminescent Properties of ZnWO4 Crystal
- Author
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Kirill Subbotin, Anatolii Titov, Victoria Solomatina, Andrew Khomyakov, Ekaterina Pakina, Viktor Yakovlev, Damir Valiev, Marina Zykova, Kristina Kuleshova, Yana Didenko, Denis Lis, Mikhail Grishechkin, Sergei Batygov, Sergei Kuznetsov, and Igor Avetissov
- Subjects
General Materials Science ,zinc tungstate ,pure substance ,inductively coupled plasma mass spectrometry ,crystal growth ,photoluminecense ,cathodoluminecense - Abstract
Special techniques for deep purification of ZnO and WO3 have been developed in this work. A ZnWO4 single crystal has been grown by the Czochralski method using purified ZnO and WO3 chemicals, along with the ZnWO4 crystal-etalon, which has been grown at the same conditions using commercially available 5N ZnO and WO3 chemicals. The actual accidental impurities compositions of both the initial chemicals and the grown crystals have been measured by inductively coupled plasma mass-spectrometry. A complex of comparative spectroscopic studies of the crystals has been performed, including optical absorption spectra, photo-, X-ray-, and cathodoluminescence spectra and decay kinetics, as well as the photoluminescence excitation spectra. The revealed differences in the measured properties of the crystals have been analyzed in terms of influence of the accidental impurities on these properties.
- Published
- 2023
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