Temperature sensing behavior of Tm^3+:1G4(a),1G4(b) in oxyfluoride glass ceramics containing BaYbxY1-xF5 nanocrystals

作     者：Rui Zhu Ke Zhang Congcong Zhu Zhencai Li Qiuhong Min Dacheng Zhou Jianbei Qiu Rui Zhu;Ke Zhang;Congcong Zhu;Zhencai Li;Qiuhong Min;Dacheng Zhou;Jianbei Qiu

作者机构：College of Materials Science and EngineeringKunming University of Science and TechnologyKunming 650093China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2020年第38卷第4期

页      面：356-361页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 080202[工学-机械电子工程] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 

基　　金：Project supported by the National Natural Science Foundation of China(11774138,11664022,51862020) Foundation of Yunnan Province(2019HC016) 

主　　题：Tm^3+ BaYbxY(1-x)F5 Glass ceramics Up-conversion luminescence Temperature sensing Rare earths 

摘      要：Tm3+-doped transparent oxyfluoride glass ceramics containing BaYbxY((1-x))F5 nanocrystals were prepared via high temperature solid phase melting method,of which up-conversion emission is achieved by the Yb3+-mediated energy transfer *** required photon number of Tm3+ions emissions in BaYbxY(1-x)F5 nanocrystals was calculated through the luminescence spectra,revealing the strong dependence of energy transfer mechanism on Yb3+ions ***,based on the fluore scence intensity ratio technology,the effect of different energy transfer mechanism on the temperature sensitivity was investigated by the temperature-dependent luminescence intensity of thermally coupled energy levels of Tm3+:1G4(a),1G4(b).The obtained sensitivity decreases with the increase of Yb3+ions content,which is mainly attributed to the changes in photon absorption process of Tm^3+:1G4(b).