Y_2O_3:Er^(3+)粒子的微波制备(英文)  

Microwave-assistant Fabrication of Y_2O_3:Er^(3+) Particles

作　　者：贾若琨[1] 和东亮[2] 戴洁[2] 杨文胜[2] 白玉白[2] 

机构地区：[1]东北电力大学化学工程学院,长春132012 [2]吉林大学化学学院,长春130023

出　　处：《物理化学学报》2007年第8期1288-1290,共3页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(20073016,60271020);东北电力大学博士后基金资助项目

摘　　要：采用微波法和溶胶-凝胶法制备了(Y2O3:Er3+)粒子.微波法制备过程中烧结温度降低到600℃.980nm激光激发下得到550和660nm两个上转换发射带.微波法制备的上转换材料得到了强的红光发射和弱的绿光发射,溶胶-凝胶法制备的材料得到了强的绿色发射和弱的红光发射.结果表明,微波促进了S6对称性的形成,S6对称性促进了红光的发射.Erbium doped Y2O3 （Y2O3：Er^3＋） particles were prepared by microwave method and sol-gel method. Using microwave method the calcining temperature was decreased to 600 ℃. Two upconvening emission bands centered at 550 and 660 nm were presented under 980 nm laser excitation. Samples prepared by microwave method showed a strong red emission and a week green emission, while samples prepared by sol-gel method showed a strong green emission and a week red emission. The results showed that microwave promoted the formation of S6 symmetric structures and the S6 symmetric structures promoted the red emission.

关 键 词：上转换 微波制备 Y2O3 

分 类 号：O614.33[理学—无机化学]