A novel Tb^(3+) and Eu^(3+) co-doped dual-emitting phosphate K_(3)SrBi(P_(2)O_(7))_(2) phosphor for application in FIR thermometers  

作　　者：Baochen Wang Shifeng Sun Zeqi Li Zongwang Li Weiwei Lin Chao Zeng Yan-gai Liu Ruiyu Mi 

机构地区：[1]School of Chemical and Environmental Engineering,Anhui Polytechnic University,Wuhu,241000,China [2]State-Province Joint Engineering Laboratory of Zeolite Membrane Materials,Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education,Institute of Advanced Materials,College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang,330022,China [3]Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes,National Laboratory of Mineral Materials,School of Materials Science and Technology,China University of Geosciences,Beijing,100083,China

出　　处：《Journal of Rare Earths》2024年第3期455-463,I0001,共10页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(52072348 and 52104272);Scientific Research Start-up Fund of Anhui Polytechnic University(2020YQQ053);Scientific Research Project of Anhui Polytechnic University(Xjky2020083);Innovation and Entrepreneurship Education and Training Project for Anhui Provincial College Students(S202110363258)。

摘　　要：Rare earth co-doped phosphor for fluorescence intensity ratio(FIR) thermometer has gained increasing attention in recent years. Herein, the novel Tb^(3+)and Eu^(3+)co-doped K_(3)SrBi(P_(2)O_(7))_(2)(KSBP) phosphate phosphors were reported. The crystal structure of the title phosphor was determined using Rietveld refinement and proved to have a three-dimensional structure. The time-resolved spectroscopy reveals that there is almost no energy transfer between Tb^(3+)and Eu^(3+). More importantly, Tb^(3+)and Eu^(3+)emissions show different thermal quenching behaviors, which claims the potential of this material for application in optical thermometer. The FIR of the typical KSBP:0.02Tb^(3+),0.04Eu^(3+)sample demonstrates a polynomial relationship as a function of temperature and the absolute and relative sensitivity are0.025 K^(-1) and 0.59%/K, respectively. In general, our study reports a novel and potential KSBP:Tb^(3+),Eu^(3+)phosphate phosphor that is promising for use in high-sensitive FIR thermometers.

关 键 词：PHOSPHOR THERMOMETER Fluorescence intensity ratio Thermal stability Rare earths 

分 类 号：TQ422[化学工程]