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Retivov V, Dubov V, Komendo I, Karpyuk P, Kuznetsova D, Sokolov P, Talochka Y, Korzhik M. Compositionally Disordered Crystalline Compounds for Next Generation of Radiation Detectors. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4295. [PMID: 36500919 PMCID: PMC9740461 DOI: 10.3390/nano12234295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
The review is devoted to the analysis of the compositional disordering potential of the crystal matrix of a scintillator to improve its scintillation parameters. Technological capabilities to complicate crystal matrices both in anionic and cationic sublattices of a variety of compounds are examined. The effects of the disorder at nano-level on the landscape at the bottom of the conduction band, which is adjacent to the band gap, have been discussed. The ways to control the composition of polycationic compounds when creating precursors, the role of disorder in the anionic sublattice in alkali halide compounds, a positive role of Gd based matrices on scintillation properties, and the control of the heterovalent state of the activator by creation of disorder in silicates have been considered as well. The benefits of introducing a 3D printing method, which is prospective for the engineering and production of scintillators at the nanoscale level, have been manifested.
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Affiliation(s)
- Vasili Retivov
- National Research Center “Kurchatov Institute”, Moscow 123098, Russia
- National Research Center “Kurchatov Institute”—Institute of Reactives, IREA, Moscow 107076, Russia
| | - Valery Dubov
- National Research Center “Kurchatov Institute”, Moscow 123098, Russia
- National Research Center “Kurchatov Institute”—Institute of Reactives, IREA, Moscow 107076, Russia
| | - Ilia Komendo
- National Research Center “Kurchatov Institute”, Moscow 123098, Russia
- National Research Center “Kurchatov Institute”—Institute of Reactives, IREA, Moscow 107076, Russia
| | - Petr Karpyuk
- National Research Center “Kurchatov Institute”, Moscow 123098, Russia
- National Research Center “Kurchatov Institute”—Institute of Reactives, IREA, Moscow 107076, Russia
| | - Daria Kuznetsova
- National Research Center “Kurchatov Institute”, Moscow 123098, Russia
- National Research Center “Kurchatov Institute”—Institute of Reactives, IREA, Moscow 107076, Russia
| | - Petr Sokolov
- National Research Center “Kurchatov Institute”—Institute of Reactives, IREA, Moscow 107076, Russia
| | - Yauheni Talochka
- Institute for Nuclear Problems, Belarus State University, 220030 Minsk, Belarus
| | - Mikhail Korzhik
- National Research Center “Kurchatov Institute”, Moscow 123098, Russia
- Institute for Nuclear Problems, Belarus State University, 220030 Minsk, Belarus
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Korjik M, Bondarau A, Dosovitskiy G, Dubov V, Gordienko K, Karpuk P, Komendo I, Kuznetsova D, Mechinsky V, Pustovarov V, Smyslova V, Tavrunov D, Retivov V. Lanthanoid-doped quaternary garnets as phosphors for high brightness cathodoluminescence-based light sources. Heliyon 2022; 8:e10193. [PMID: 36039139 PMCID: PMC9418208 DOI: 10.1016/j.heliyon.2022.e10193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/27/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022] Open
Abstract
Gadolinium-yttrium- aluminum-gallium garnets (GYAGG) doped and codoped with Eu, Tb, and Ce were manufactured as ceramics to develop long-wavelength phosphors for high-brightness white light sources based on cathodoluminescence (CL). The CL light yield (LY) of Tb-doped ceramics at high-intensity electron beam excitation is shown to be more than twice as high as that of the conventional phosphor YAG:Ce, whereas codoping with Eu to redshift the chromaticity results in reducing the LY approximately to the level of YAG:Ce. The LY might be substantially improved by using a mix of Tb- and Eu-doped GYGAG powders instead of a single codoped GYGAG to produce ceramic phosphor. The high LY is explained by favorable contribution of Gd sublattice in excitation transfer to activator ions. Chromaticity of phosphors GYGAG:Tb, Eu can be tuned in a wide range by varying the ratio of Tb to Eu concentration. They are radiation resistant and stabile in the temperature range from 300 to 450 K.
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Affiliation(s)
- M Korjik
- Institute for Nuclear Problems, Belarus State University, Minsk, Belarus.,National Research Center "Kurchatov Institute", Moscow, Russia
| | - A Bondarau
- Institute for Nuclear Problems, Belarus State University, Minsk, Belarus
| | - G Dosovitskiy
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - V Dubov
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - K Gordienko
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - P Karpuk
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - I Komendo
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - D Kuznetsova
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - V Mechinsky
- Institute for Nuclear Problems, Belarus State University, Minsk, Belarus.,National Research Center "Kurchatov Institute", Moscow, Russia
| | | | - V Smyslova
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
| | - D Tavrunov
- Ural Federal University, Yekaterinburg, Russia
| | - V Retivov
- National Research Center "Kurchatov Institute", Moscow, Russia.,National Research Center "Kurchatov Institute" - IREA, Moscow, Russia
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