Bright Green Emission in Ho+3-Yb+3 Co-Doped Bi1/2Na1/2TiO3 Ferroelectric Ceramics and the Optical Thermometry Behavior

被引：15

作者：

Hui, Xinwei ^{[1
]}

Li, Yanxia ^{[1
]}

Wang, Xusheng ^{[1
,2
]}

Peng, Dengfeng ^{[1
,3
]}

Zou, Hua ^{[1
]}

Li, Jun ^{[1
,2
]}

Cao, Qiufeng ^{[1
]}

Liu, Qian ^{[1
]}

Yao, Xi ^{[1
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China

[2] Tongii Univ, Minist Educ, Key Lab Adv Civil Engn Mat, Shanghai 201804, Peoples R China

[3] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

来源：

FERROELECTRICS | 2015年 / 487卷 / 01期

关键词：

Up-conversion; blue emissions; fluorescence intensity ratio; temperature sensor; UP-CONVERSION LUMINESCENCE; INTENSITY RATIO TECHNIQUE; FLUORESCENCE; GLASS; STATE;

D O I：

10.1080/00150193.2015.1071601

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ho+3-Yb+3 co-doped bismuth titanate ferroelectric ceramics were prepared by the solid-state reaction method. A bright green emission is observed at room temperature, which ascribed to F-5(4)+S-5(2) I-5(8) transition. The dependence of the emission intensity on the pumping power indicated that the up-conversion emission in the ceramics was a two-photon process. Additionally, an optical temperature sensor based on the blue emission from the F-5(2,3)/K-3(8) and F-5(1)/(5)G(6) states of Ho3+ ions has been developed. In the temperature range of 273-573K, the maximum sensitivity of about 0.0009K(-1)is obtained. Our study suggests that Ho3+ and Yb3+ co-doped Bi1/2Na1/2TiO3 (NBT) ceramics can be applied to the fabrication of new photoluminescence ferroelectric ceramics devices and of the optical temperature sensors.

引用

页码：133 / 141

页数：9

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