纳米In_2O_3:Er^(3+),Yb^(3+)的燃烧法制备及上转换发光  

Synthesis of In_2O_3:Er^(3+),Yb^(3+) nanocrystals by combustion method and its up-conversion luminescence

作　　者：邹少瑜[1] 孟建新[2] 

机构地区：[1]国家知识产权局专利局专利审查协作广东中心,广东广州510530 [2]暨南大学纳米化学研究所,广东广州510632

出　　处：《电子元件与材料》2015年第8期18-21,共4页Electronic Components And Materials

基　　金：国家自然科学基金项目资助(No.30670523);广东省自然科学基金团队项目资助(No.05200555)

摘　　要：采用燃烧法制备了Yb3+和Er3+共掺的In2O3纳米晶。用X射线衍射和透射电镜对样品的结构和形貌进行了分析,结果表明,该粉体为纯立方相In2O3结构,颗粒尺寸为80~100 nm;该粉体在980 nm近红外激发下发射出中心波长为525 nm和555 nm的绿光、662 nm的红光,分别对应于Er3+的2H11/2/4S3/2→4I15/2和4F9/2→4I15/2跃迁;研究了Er3+/Yb3+掺杂浓度、煅烧温度和煅烧时间等制备条件对In2O3:Er3+,Yb3+纳米晶的上转换发光强度的影响。Nanocrystals of up-conversion phosphor Er3＋ and Yb^3＋ co-doped In2O3 were prepared by combustion method. X-ray diffraction analysis shows that the products are pure cubic phase, while transmission electron microscopy measurements confirm the particles size is 80-100 nm. Under 980 nm excitation, the spectral peaks centered at 525 nm, 555 nm （green light） and 662 nm （red light）, corresponding to2H11/2/4S3/2→4I15/2 and4F9/2→4I15/2 transitions of Er3＋ ions, respectively. The impact of doping concentration of Er3＋/Yb3＋ions, calcining temperature and calcining time on the up-conversion luminescence intensity were discussed.

关 键 词：IN2O3 ER^3+/YB^3+ 上转换 燃烧法 纳米晶 透明电极 

分 类 号：O614.372[理学—无机化学]