Growth and characterization of zirconium-doped cesium hafnium chloride crystals for scintillators

0537889 - FZÚ 2021 RIV CZ eng A - Abstrakt
Král, Robert - Vaněček, Vojtěch - Páterek, Juraj - Buryi, Maksym - Babin, Vladimir - Jarý, Vítězslav - Zemenová, Petra - Zloužeová, Kateřina - Bystřický, Aleš - Nikl, Martin
Growth and characterization of zirconium-doped cesium hafnium chloride crystals for scintillators.
Book of Abstracts of the 30^th Joint Seminar of the Development of Materials Science in Research and Education. Praha: Institute of Physics of the Czech Academy of Sciences, 2020 - (Kožíšek, Z.; Král, R.; Zemenová, P.). s. 39-39. ISBN 978-80-907237-1-9.
[Joint Seminar of the Development of Materials Science in Research and Education /30./. 07.09.2020-11.09.2020, Pavlov]
Grant CEP: GA ČR GJ18-17555Y; GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: crystal growth * cesium hafnium chloride * Zr-doping * Bridgman method * luminescence * scintillator
Obor OECD: Materials engineering

This work was focused on the preparation of starting materials (CsCl, HfCl4), synthesis of Cs2HfCl6, doping of Cs2HfCl6 by tetravalent elements A4+ (such as Zr4+), and growth of Cs2HfCl6:Zr4+ crystals by the vertical Bridgman method. Prepared crystals were cut and polished for subsequent examination concerning their physical, structural, optical, luminescence, and scintillation properties. The grown crystals exhibited emission originating in the self trapped exciton localized on the Hf and Zr centers. Due to that red shift of the observed emission was recorded with increasing Zr content.
Trvalý link: http://hdl.handle.net/11104/0315721