Radioluminescence properties of Ce3+-activated MGd(PO3)4 (M = Li, Na, K, Cs)

被引:23
|
作者
Zhong, Jiuping [1 ]
Liang, Hongbin [1 ]
Su, Qiang [1 ]
Zhou, Jianying [1 ]
Khodyuk, Ivan V. [2 ]
Dorenbos, Pieter [2 ]
机构
[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, MOE Lab Bioinorgan & Synthet Chem, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
[2] Delft Univ Technol, Fac Sci Appl, NL-2629 JB Delft, Netherlands
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
Rare-earth phosphate; Luminescence; Optical properties; Scintillation material; DOUBLE PHOSPHATES; SCINTILLATORS;
D O I
10.1016/j.optmat.2009.09.006
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Rare-earth phosphates MGd(PO3)(4): 1.0 mol% Ce3+ (M = Li, Na, K, Cs) powder samples were prepared by a solid-state reaction technique at high temperature. The radioluminescence spectra and light-yield characteristic of MGd(PO3)(4):Ce3+ under X-ray irradiation were determined. It was found that, from LiGd(PO3)(4):Ce3+ to CsGd(PO3)(4):Ce3+, with the increasing of M+ radius, the doublet emission energy of Ce3+ ions decrease gradually but the light-yield increase significantly. Especially, CsGd(PO3)(4): 1.0 mol% Ce3+ has the highest X-ray excited light-yield of 24,400 photons/MeV with maximal emission peaks at 337 nm and 358 mn at room temperature. Due to its suitable emission wavelength range, high light-yield, high chemical stability and fast luminescence decay of Ce3+ emission, CsGd(PO3)(4):Ce3+ may be a promising scintillation material. (C) 2009 Elsevier B.V. All rights reserved.
引用
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页码:378 / 381
页数:4
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