Hydrothermal preparation and photoluminescent property of LiY(MoO_4)_2:Pr^(3+) red phosphors for white light-emitting diodes

作     者：李兆 赵西成 江元汝 

作者机构：College of Materials and Mineral Resources Xi’an University of Architecture and Technology College of Metallurgical EngineeringXi’an University of Architecture and Technology School of Science Xi’an University of Architecture and Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2015年第33卷第1期

页      面：33-36页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：supported by National Natural Science Foundation of China(21205092) the National High-tech Research and Development Program of China(863 Program)(2011AA05A202) 

主　　题：white light emitting diode LiY(MoO4)2:pr^3+ hydrothermal preparation photoluminescent rare earths 

摘      要：Praseodymium doped lithium yttrium molybdate Li Y1-8x Pr x（Mo O4）2（x=0.005-0.025） phosphors were successfully prepared by the hydrothermal method. The phase, morphology, and luminescent property of the prepared phosphors were investigated by X-ray diffraction and scanning electron microscopy. The results indicated that doping of Pr^3＋ ions did not change the main phase of the phosphors. The samples emitted red luminescence upon excitation at 453 nm and the strongest emission peak corresponding to the characteristic transition of the Pr3＋ ion： 3P0→3F2 was observed at 657 nm. Li Y（Mo O4）2：Pr^3＋ red phosphors could be effectively excited by blue light emitting-diodes to emit red light; thus, acting as potential candidates for compensating the red light deficiency of cerium doped yttrium aluminum garnet yellow phosphor.