Sol-gel synthesis and luminescent properties of M′-type LuTaO4:Eu3+ phosphors

被引：15

作者：

Chen, Shiwei ^{[1
]}

Liu, Xiaolin ^{[1
]}

Gu, Mu ^{[1
]}

Ni, Chen ^{[1
]}

Liu, Bo ^{[1
]}

Huang, Shiming ^{[1
]}

机构：

[1] Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2013年 / 140卷

基金：

中国国家自然科学基金;

关键词：

LuTaO4:Eu3+; Sol-gel processes; Optical properties; Luminescence; OPTICAL-PROPERTIES; EU3+; FLUORESCENCE; EU3+-Y2O3; CHEMISTRY; TB3+;

D O I：

10.1016/j.jlumin.2013.03.003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Eu3+ activated M'-type LuTaO4 phosphors were successfully prepared by using inorganic salts, citric acid and PEG400 via the Pechini sol-gel technique. Their crystallization, morphology, photoluminescence (PL) and X-ray excited luminescence (XEL) characteristics were investigated in detail. The results indicated that the M'-type LuTaO4 phase appeared at about 850 degrees C, which was much lower than the crystallization temperature of the solid-state reaction. And the grain size of the phosphor was controlled from nano- to micron-scale by adjusting the sintering temperature. The optimal doping concentration of Lu1-xEuxTaO4 phosphors was at x=0.10. With the sintering temperature increasing, PL intensity of the phosphor was improved remarkably, whereas its decay time was decreased. It is worth to notice that the sal-gel derived M'-type LuTaO4:Eu3+ phosphors reveal excellent XEL performance and easily controlled grain size, which implies that they will have promising applications in high-spatial-resolution X-ray imaging. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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[11] SOLID-STATE CHEMISTRY AND LUMINESCENCE OF X-RAY PHOSPHORS [J].