Improved photoluminescence behavior of Eu^(3+)-activated Ca_5(PO_4)_3F red nanophosphor by adding Li^+,Au^(3+),and Bi^(3+) as co-dopants  

作　　者：吴玉梅 徐旭辉 余雪 张步豪 黎千跃 邱建备 

机构地区：[1]College of Materials Science and Engineering,Kunming University of Science and Technology [2]Key Laboratory of Advanced Materials of Yunnan Province,Kunming University of Science and Technology

出　　处：《Chinese Optics Letters》2014年第10期82-85,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.11204113);the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20115314120001);the Foundation of Natural Science of Yunnan Province(No.2011FB022)

摘　　要：A series of Ca499（PO4）3F：1%Eu^3＋, 1%X （X = Li＋, Au3＋, and Bi3＋） nanoparticles are prepared using hydrothermal method, with an average size of 33-62 nm. We study the improved photoluminescence properties of Ca4.99（PO4）3F：1%Eu3＋ by co-doping with Li＋, Au3＋, and Bi3＋ ions, respectively, and the enhancement of the emission intensities of Eu3＋ is observed in these samples. The effects of Li＋ acting as a charge compensator, Au3＋ as a plasma surface sensitizer, and Bi3＋ as an energy conversion agent are discussed. The results show Ca4.99（PO4）3F：1%Eu3＋, 1%X nanoparticles are a promising candidate as a red component for near-ultraviolet light-emitting diodes.A series of Ca499（PO4）3F：1%Eu^3＋, 1%X （X = Li＋, Au3＋, and Bi3＋） nanoparticles are prepared using hydrothermal method, with an average size of 33-62 nm. We study the improved photoluminescence properties of Ca4.99（PO4）3F：1%Eu3＋ by co-doping with Li＋, Au3＋, and Bi3＋ ions, respectively, and the enhancement of the emission intensities of Eu3＋ is observed in these samples. The effects of Li＋ acting as a charge compensator, Au3＋ as a plasma surface sensitizer, and Bi3＋ as an energy conversion agent are discussed. The results show Ca4.99（PO4）3F：1%Eu3＋, 1%X nanoparticles are a promising candidate as a red component for near-ultraviolet light-emitting diodes.

关 键 词：Calcium EUROPIUM Light emitting diodes Lithium Nanoparticles PHOTOLUMINESCENCE 

分 类 号：O482.3[理学—固体物理]