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

被引：0
作者：
Kuichao Liu
Ke Ma
Hualong Tao
Yan Cui
Xingjian Tian
Shimin Liu
Ming He
Bin Dong
Bo Song
Zhihua Zhang
机构：
[1] Dalian Jiaotong University,School of Materials Science and Engineering
[2] Dalian Minzu University,Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering
[3] Harbin Institute of Technology,Academy of Fundamental and Interdisciplinary Sciences
来源：
Journal of Sol-Gel Science and Technology | 2021年 / 99卷
关键词：
Optical temperature sensing; Er; –Yb; –Mo; co-doped TiO; /Yb; Ti; O; Nanofibers; Up-conversion emission; Fluorescence intensity ratio;
D O I：
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中图分类号：
学科分类号：
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 ~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.
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页码：557 / 564
页数：7
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