Effects of calcination temperature and Li~+ ions doping on structure and upconversion luminescence properties of TiO2:Ho3+-Yb3+ nanocrystals

被引：0

作者：

Kaishun Zou ^{[1
,2
]}

Guangzong Dong ^{[1
]}

Juncheng Liu ^{[1
]}

Boxu Xu ^{[1
]}

Danping Wang ^{[1
]}

机构：

[1] School of Materials Science and Engineering,Tianjin Polytechnic University

[2] School of Science,Tianjin Polytechnic University

来源：

Journal of Materials Science & Technology | 2019年 / 35卷 / 04期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Calcination temperature; Li~+doping; Upconversion luminescence; TiO2; nanocrystals; Rare earth;

D O I：

暂无

中图分类号：

TQ422 [光化学物质]; TB383.2 [];

学科分类号：

070205 ; 080501 ; 0817 ; 1406 ;

摘要：

Ho-Ybco-doped and Ho-Yb-Li~+ tri-doped TiOnanocrystals were prepared using the sol-gel method. Effects of the calcination temperature and Li~+ ions doping on the structure and upconversion luminescence properties of Ho-Ybco-doped TiOnanocrystals were investigated. The upconversion luminescence of nanocrystals was enhanced with the reduction of the crystal lattice symmetry and the crystallinity improvement of the matrix, which were facilitated by the calcination temperature change and Li~+ ions doping. The lowest lattice symmetry and the best crystallinity of the matrix resulted in the maximum luminescence intensity.

引用

页码：483 / 490

页数：8