CaWO_4-YNbO_4固溶体的Pechini溶胶-凝胶法合成及其发光性能  

Synthesis and Luminescence Properties of CaWO_4-YNbO_4 Solid Solutions by Pechini Sol-Gel Method

作　　者：王芳[1] 贾佩云[1] 邱玉章[1] 孙元平[1] 

机构地区：[1]东北林业大学理学院化学化工系,黑龙江哈尔滨150040

出　　处：《合成化学》2011年第6期705-708,共4页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(NSFC50872131;60977013;20921002);东北林业大学研究生科技创新项目(gram10)

摘　　要：利用Pechini溶胶-凝胶法成功地合成了一系列CaWO4-YNbO4固溶体Ca1-xYxW1-xNbxO4(1),其结构和性能经XRD,IR,SEM,PL等表征。结果表明,在NbO43-的掺杂量(x)为25%,于800℃焙烧2 h的条件下合成的1最佳。W-O电荷迁移跃迁随着x的增加发生明显的蓝移,其荧光强度降低。A series of solid solutions of CaWO4-YNbO4,Ca1-xYxW1-xNbxO4（1）,were successfully synthesized by Pechini sol-gel method.The structures and properties of 1 were characterized by XRD,IR,SME and PL.The results indicate that the optimum synthesis temperature of 1 was 800 ℃,and the optimum doping amount（x） of NbO3-4 was 25%.With the increase of x,the W-O charge transfer band of 1 shift to high energy accompanying the decrease of luminescent intensity.

关 键 词：固溶体 溶胶凝胶法 钨酸钙 铌酸钇 合成 发光性能 

分 类 号：O614.33[理学—无机化学] O482.31[理学—化学]