CaWO_4粉体和CaWO_4一维阵列的制备及光致发光特性  

Preparation and Photoluminescence Characteristics of CaWO_4 Powders and CaWO_4 One-dimensional Arrays

作　　者：王金花[1] 张晓君[1] 徐宝龙[1] 曹德忠[1] 

机构地区：[1]烟台大学光电信息科学与技术学院,山东烟台264000

出　　处：《中国粉体技术》2013年第3期23-25,共3页China Powder Science and Technology

基　　金：国家自然科学基金项目;编号:10574015;国家自然科学基金项目;编号:10704065;国家自然科学基金青年科学基金项目;编号:11105117;烟台大学博士后基金资助项目(编号:WL03B15)

摘　　要：采用溶胶-凝胶法及辅助氧化铝模板法分别制备CaWO4粉体和CaWO4一维阵列,研究合成CaWO4粉体和一维陈列的光致发光特性。结果表明,制备的样品是纯CaWO4粉体;CaWO4粉体的强发光峰是位于410 nm的宽带谱,而CaWO4一维阵列的强发光峰在450 nm处,其光致发光曲线呈现宽化和强发光峰位的红移,这是样品和模板的光致发光光谱耦合的结果。CaWO4 powders and CaWO4 one-dimensional arrays were synthesized by sol-gel method and nano-porous alumina template enhancement.Photol uminescence characteristics of CaWO4 powders and one-dimensional arrays were studied.The results show that the samples are pure calcium tungstate powders.The luminescent spectrum strongest peak of CaWO4powders is broadband spectrum at 410 nm,while that of CaWO4 one-dimensional arrays is at 450 nm.Due to the samples and the template spectrum coupling,the photoluminescence peak has obviously red shift.

关 键 词：CaWO4粉体 溶胶-凝胶法 多孔氧化铝模 一维阵列 

分 类 号：O482.31[理学—固体物理]