A facile approach to the synthesis of Er3+-Yb3+-Mo6+ co-doped TiO2/Yb2Ti2O7 electrospun nanofibers and high thermal sensitivity

被引：1

作者：

Liu, Kuichao ^{[1
,2
]}

Ma, Ke ^{[1
]}

Tao, Hualong ^{[1
]}

Cui, Yan ^{[1
]}

Tian, Xingjian ^{[1
]}

Liu, Shimin ^{[1
]}

He, Ming ^{[2
]}

Dong, Bin ^{[2
]}

Song, Bo ^{[3
]}

Zhang, Zhihua ^{[1
]}

机构：

[1] Dalian Jiaotong Univ, Sch Mat Sci & Engn, Dalian 116028, Peoples R China

[2] Dalian Minzu Univ, Sch Phys & Mat Engn, Key Lab Photosensit Mat & Devices Liaoning Prov, Key Lab New Energy & Rare Earth Resource Utilizat, Dalian 116600, Peoples R China

[3] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Harbin 150080, Peoples R China

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2021年 / 99卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Optical temperature sensing; Er3+-Yb3+-Mo6+ co-doped TiO2/Yb2Ti2O7; Nanofibers; Up-conversion emission; Fluorescence intensity ratio; UP-CONVERSION EMISSIONS; LUMINESCENCE PROPERTIES; SELECTIVE ENHANCEMENT; GREEN; SENSORS;

D O I：

10.1007/s10971-021-05598-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Er3+-Yb3+-Mo6+ co-doped TiO2/Yb2Ti2O7 up-conversion luminescent nanofibers have been successfully synthesized using the electrospinning technology followed by thermolysis. The effects of the precursor ratio and annealing process on up-conversion luminescent character were investigated. The phase of TiO2 was determined to be either anatase or rutile. And the cubic Yb2Ti2O7 in Er3+-Yb3+-Mo6+ co-doped TiO2 phosphor was confirmed. After annealing at high temperature, the up-conversion luminescent intensity of the studied system increased obviously. The fluorescence intensity ratio (FIR) used to be made on the basis of green up-conversion emissions. It was studied as a function of temperature. The maximum rate of sensitivity was similar to 0.01 K-1 in the range of 300-600 K. The results indicate that Er3+-Yb3+-Mo6+ co-doped TiO2/Yb2Ti2O7 phosphor is a brand-new material that meets the requirement of the optical temperature sensing.

引用

页码：557 / 564

页数：8

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