Multi-photon upconversion luminescence of Er3+-doped Y2O3 nanocrystals

被引：2
|
作者：
Wang, Yunxiang [1 ]
Bai, Yunfeng [2 ]
Song, Yinglin [1 ]
机构：
[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2009年 / 7卷 / 06期
关键词：
ER-CODOPED ZNO; PHOTOLUMINESCENCE; INTENSITY; EMISSION; LI;
D O I：
10.3788/COL20090706.0524
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Visible upconversion emission intensities are investigated in Er3+-doped Y2O3 nanocrystals. We also find that the upconversion intensity varies nonlinearly with the excitation power with a threshold of 110 mW, which indicates that the green and red emissions would be photon avalanche upconversion when the excitation power exceeds the threshold.
引用
收藏
页码：524 / 526
页数：3
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