Molten salt synthesis, characterization, and luminescence properties of GdNbO4/LuTaO4:Eu3+ phosphors

被引：26

作者：

Lin, Jintai ^{[1
]}

Zhou, Zhan ^{[1
]}

Wang, Qianming ^{[1
,2
,3
]}

机构：

[1] S China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China

[2] S China Normal Univ, Sch Chem & Environm, Minist Educ, Key Lab Theoret Chem Environm, Guangzhou 510006, Guangdong, Peoples R China

[3] Guangdong Technol Res Ctr Ecol Management & Remed, Guangzhou 510006, Guangdong, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Optical materials; Chemical synthesis; X-ray diffraction; Optical properties; PHOTOLUMINESCENCE PROPERTIES; EU3+; POWDER; METAL; TB3+; RE3+;

D O I：

10.1016/j.materresbull.2013.03.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

GdNbO4:Eu3+ and LuTaO4:Eu3+ have been successfully prepared with different fluxes (NaCl, KCl, NaCl and KCl) by the molten salt method. X-ray diffraction (XRD) patterns illustrated that well crystallized GdNbP4:Eu3+ and LuTaO4:Eu3+ in the presence of fluxes were formed under reduced temperature (900 degrees C) in contrast to conventional method (GdNbO4:Eu3+: around 1200 degrees C; LuTaO4:Eu3+: around 1500 degrees C). Scanning electron microscope (SEM) images revealed that well dispersed particles were achieved (granular or rod-like structures). Meanwhile, the photo-luminescent studies demonstrated that both niobate and tantalate are efficient hosts to sensitize europium red emissions. The results indicated that GdNbO4:Eu3+ using NaCl as the flux gave much enhanced red emission whereas LuTaO4:Eu3+ synthesized with the assistance of mixed salts (NaCl-KCl) achieved the best luminescence. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2771 / 2775

页数：5

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