Crystal growth and scintillation properties of YAlO3:Pr co-doped with Mo3+ and Ga3+ ions

M. Zhuravleva; A. Novoselov; M. Nikl; Jan Pejchal; H. Ogino; A. Yoshikawa

doi:10.1016/j.jcrysgro.2008.09.055

Crystal growth and scintillation properties of YAlO₃:Pr co-doped with Mo³⁺ and Ga³⁺ ions

M. Zhuravleva, A. Novoselov, M. Nikl, Jan Pejchal, H. Ogino, A. Yoshikawa

Materials Design Division

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

13 Citations (Scopus)

Abstract

In this work, we present results of studies aimed at optimization of scintillation performance of fast but low-light yield YAlO₃:Pr scintillator. We applied co-doping with trivalent ions Mo³⁺ and Ga³⁺ in attempts to reduce the concentration of charge trapping centers that may exist in this material. Systematic study was performed by using the micro-pulling-down method for single crystal growth. Square-shaped YAlO₃:(Pr,Mo) and YAlO₃:(Pr,Ga) crystals with selected co-dopant concentrations were grown. Experimental results including absorption spectra, luminescence under X-ray excitation and scintillation decay are presented. No positive contribution of the co-dopant ions was found. Complicated co-dopant behavior makes the improvement of scintillation parameters difficult.

Original language	English
Pages (from-to)	537-540
Number of pages	4
Journal	Journal of Crystal Growth
Volume	311
Issue number	3
DOIs	https://doi.org/10.1016/j.jcrysgro.2008.09.055
Publication status	Published - 2009 Jan 15

Keywords

A1. Doping
A2. Growth from melt
B1. Oxides
B2. Scintillator materials

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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abstract = "In this work, we present results of studies aimed at optimization of scintillation performance of fast but low-light yield YAlO3:Pr scintillator. We applied co-doping with trivalent ions Mo3+ and Ga3+ in attempts to reduce the concentration of charge trapping centers that may exist in this material. Systematic study was performed by using the micro-pulling-down method for single crystal growth. Square-shaped YAlO3:(Pr,Mo) and YAlO3:(Pr,Ga) crystals with selected co-dopant concentrations were grown. Experimental results including absorption spectra, luminescence under X-ray excitation and scintillation decay are presented. No positive contribution of the co-dopant ions was found. Complicated co-dopant behavior makes the improvement of scintillation parameters difficult.",

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T1 - Crystal growth and scintillation properties of YAlO3:Pr co-doped with Mo3+ and Ga3+ ions

AU - Zhuravleva, M.

AU - Novoselov, A.

AU - Nikl, M.

AU - Pejchal, Jan

AU - Ogino, H.

AU - Yoshikawa, A.

PY - 2009/1/15

Y1 - 2009/1/15

N2 - In this work, we present results of studies aimed at optimization of scintillation performance of fast but low-light yield YAlO3:Pr scintillator. We applied co-doping with trivalent ions Mo3+ and Ga3+ in attempts to reduce the concentration of charge trapping centers that may exist in this material. Systematic study was performed by using the micro-pulling-down method for single crystal growth. Square-shaped YAlO3:(Pr,Mo) and YAlO3:(Pr,Ga) crystals with selected co-dopant concentrations were grown. Experimental results including absorption spectra, luminescence under X-ray excitation and scintillation decay are presented. No positive contribution of the co-dopant ions was found. Complicated co-dopant behavior makes the improvement of scintillation parameters difficult.

AB - In this work, we present results of studies aimed at optimization of scintillation performance of fast but low-light yield YAlO3:Pr scintillator. We applied co-doping with trivalent ions Mo3+ and Ga3+ in attempts to reduce the concentration of charge trapping centers that may exist in this material. Systematic study was performed by using the micro-pulling-down method for single crystal growth. Square-shaped YAlO3:(Pr,Mo) and YAlO3:(Pr,Ga) crystals with selected co-dopant concentrations were grown. Experimental results including absorption spectra, luminescence under X-ray excitation and scintillation decay are presented. No positive contribution of the co-dopant ions was found. Complicated co-dopant behavior makes the improvement of scintillation parameters difficult.

KW - A1. Doping

KW - A2. Growth from melt

KW - B1. Oxides

KW - B2. Scintillator materials

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