发光学报2012，Vol.33Issue(4)：383-388,6.DOI:10.3788/fgxb20123304.0383
溶胶-凝胶法制备Bi3+,Yb3+单掺和共掺Gd2O3荧光粉及其荧光性能
Preparation and Fluorescent Properties of Bi3+ Doped,Yb3 + Doped and Bi3 + , Yb3 + Codoped Gd2O3 Phosphors
摘要
Abstract
Bi3+ doped,Yb3+ doped and Bi3+ ,Yb3 + codoped Gd2O3 phosphors were prepared by sol-gel method. The preparation conditions of Gd2_x_yO3: Bix3 + ,Yby3 + phosphors were investigated. The phases of the phosphors were characterized,and the fluorescent properties of Gd2_x_yO3: Bix3 + ,Yby3 + were studied. Under the excitation of 338 nm, which is the characteristic excitation of Bi , NIR emissions of Yb3+ characteristic emission from 900 to 1 100 nm and the characteristic emission of Bi3 + from 500 to 700 nm have been obtained. That suggests a very efficient energy transfer from Bi3+ ions to Yb3+ ions in Gd2O3: Bi3+ ,Yb3+ . The results indicate that the Gd2O3: Bi3+ ,Yb3 + material has potential application in the silicon based solar cells by converting 300 ~ 400 nm photon which is almost useless in the silicon solar cell into 400 ~ 700 nm and 1 000 nm photons which are absorbed strongly by the Si-solar cell. And the photovoltaic efficiency of the Si-solar cell will be improved.关键词
近红外荧光粉/溶胶-凝胶法/稀土掺杂/能量传递Key words
near-infrared phosphors/sol-gel method/rare-earth doped/energy transfer分类
数理科学引用本文复制引用
肖林久,闫凤巧,谢颖,曾凡,陈永杰,李文泽..溶胶-凝胶法制备Bi3+,Yb3+单掺和共掺Gd2O3荧光粉及其荧光性能[J].发光学报,2012,33(4):383-388,6.基金项目
辽宁省博士科研启动基金项目(20101083) （20101083）
沈阳市科技局应用基础研究专项(121718)资助 （121718）
