Gd_2O_3:Yb，Er纳米材料的制备及上转换发光研究  

Synthesis and Luminescence Study of Infrared-to-Visible Upconversion Nanoparticles Gd_2O_3:Yb,Er

作　　者：王婷[1] 王悦辉[1] 富鸣[1] 李勃[1] 周济[1] 

机构地区：[1]清华大学材料科学与工程系新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《稀有金属材料与工程》2007年第A02期149-151,共3页Rare Metal Materials and Engineering

基　　金：863计划资助项目(2003AA32G030);973计划资助项目(2002CB61306;2001CB6104);国家自然科学基金(50425204;50272032;90401012)

摘　　要：利用Triton X-100/正己醇/环己烷/正己烷/水制成W/O微乳反胶团体系制备Gd_2O_3:Yb,Er上转换材料。利用扫描电镜观察氧化物粉体的颗粒形貌均为球形:通过改变掺杂元素Yb和ET的比例,在980 nm的红外光激发下,观察研究氧化物颗粒的发光性质。该粉体在波长为980nm的半导体激光器激发下发射出绿色和红色的上转换荧光,分别对应于Er^(3+)离子的~4S_(3/2)/~2H_(11/2)→~4I_(15/2)跃迁和~4F_(9/2)→~4I_(15/2)跃迁。Infrared-to-visible upconversion phosphors Gd2O3：Yb,Er with spheral shape were synthesized by using a stable microemulsion system, which included triton X-100, n-hexanol, cyclohexane and water. Red and green upconversion luminescence was obtained under 980 nm infrared excitation. Effect of different proportion in [Yb^3＋] and [Er^3＋] on the intensity of upconversion emission was also investigated.

关 键 词：纳米材料 微乳液 上转换 

分 类 号：O482.31[理学—固体物理]