Preparation and upconversion luminescence of YAG(Y3Al5O12):Yb3+,Ho3+ nanocrystals

被引：5
|
作者：
刘敏 [1 ,2 ,3 ,4 ]
王士维 [1 ]
唐定远 [2 ]
陈立东 [3 ]
马建 [4 ]
机构：
[1] Structural Ceramics Engineering Research Center, Energy Materials Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences
[2] School of Electrical & Electronic Engineering, Nanyang Technological University
[3] School of Materials Science and Engineering, Nanyang Technological University
[4] Energy Materials Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences
来源：
JournalofRareEarths | 2009年 / 27卷 / 01期
基金：
中国国家自然科学基金;
关键词：
chemical synthesis; nanoparticle; upconversion luminescence; rare earths;
D O I：
暂无
中图分类号：
TB383.1 [];
学科分类号：
摘要：
Cubic YAG:Yb3+, Ho3+ pure phase nanocrystals were synthesized by using coprecipition nitrate and ammonium hydrogen carbonate as raw materials.After calcining the precipitates at 800 °C, the resultant YAG:Yb3+, Ho3+ nanocrystals were nearly spheric and the particle size was about 40 nm.Intense upconversion spectra were observed on the powder compact pumped by a 980 nm continuous wave diode laser, and green emission centered at 549 nm, red emission centered at 667 nm, and NIR centered at 760 nm were all due to two photons process, which originated from 5S2(5F4)→5I8, 5F5→5I8, and 5S2(5F4)→5I7 transitions, respectively.
引用
收藏
页码：66 / 70
页数：5
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