A high efficient Ba2TiP2O9 phosphor for X-ray and UV excitation

被引:7
作者
Huang, Yanlin [1 ]
Tsuboi, Taiju [2 ]
Seo, Hyo Jin [3 ]
机构
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
[2] Kyoto Sangyo Univ, Fac Engn, Kyoto 6038555, Japan
[3] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea
基金
新加坡国家研究基金会;
关键词
Optical materials and properties; Ceramics; Luminescence; LUMINESCENCE PROPERTIES; CRYSTAL-GROWTH; PHOTOLUMINESCENCE;
D O I
10.1016/j.ceramint.2012.05.107
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Polycrystalline Ba2TiP2O9 phosphor was synthesized and its crystalline state was checked by X-ray diffraction. Its luminescence properties were investigated under UV excitation and X-ray excitation. The phosphor is efficiently excited by UV light and X-ray irradiation and presents a bright blue green luminescence band with a peak centered at about 490 nm. The luminescence quantum efficiency (QE) and the X-ray excited emission spectra of Ba2TiP2O9 phosphor were compared with those of a highly efficient scintillation material, Bi4Ge3O12. Ba2TiP2O9 phosphor shows higher QEs under UV excitation and comparable QE under X-ray excitation. It is suggested that the luminescence of Ba2TiP2O9 arises from isolated centers of octahedral TiO6. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
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页码:861 / 864
页数:4
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