Color-tunable Upconversion Properties of Tb^3+/Er^3+/Yb^3+ Tri-doped Na5Gd(WO4)4 Crystals  

作　　者：XUE Geng CHEN Xin ZHENG Chuan-Xin WANG Guo-Qiang LI Ling-Yun 薛耿;陈欣;郑传鑫;王国强;李凌云(College of Civil Engineering,Fuzhou University,Fuzhou 350108,China;Key Laboratory of Eco-materials Advanced Technology,College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]College of Civil Engineering,Fuzhou University,Fuzhou 350108,China [2]Key Laboratory of Eco-materials Advanced Technology,College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China

出　　处：《Chinese Journal of Structural Chemistry》2020年第2期301-309,186,共10页结构化学（英文）

基　　金：supported by the Natural Science Foundation of Fujian Province(2017J01746)。

摘　　要：In this work, novel phosphors Na5Gd(WO4)4: Tb^3+/Yb^3+ and Na5Gd(WO4)4: Tb^3+/Er^3+/Yb^3+ phosphors were synthesized by the solid state reaction method. The photoluminescence properties were investigated. The introduction of Er^3+ to NGW: Tb^3+/Yb^3+ was used to modify the chromaticity coordinates, then providing a good color tunable property. The change in the chromaticity coordinates induces the shift of emission color from yellow-green to blue-green for NGW: Tb^3+/Er^3+/Yb^3+ as the temperature increases. All the results indicate that the NGW: Er^3+/Tb^3+/Yb^3+ phosphors may be used as optical temperature sensing materials.

关 键 词：Na5Gd(WO4)4:Tb3+/Er3+/Yb3+phosphor UPCONVERSION luminescence color-tunable 

分 类 号：TQ422[化学工程]