Spectroscopic and temperature sensing properties of Sm^(3+) in self-activated CsLu(WO_(4))_(2) phosphors

作     者：Mingjun Song Jing Wang Zhi Xie Li Liu Wang Zhao Weiwei Zhou Mingjun Song;Jing Wang;Zhi Xie;Li Liu;Wang Zhao;Weiwei Zhou

作者机构：School of ChemistryChemical and Environmental EngineeringWeifang UniversityWeifang261061China College of Mechanical and Electrical EngineeringFujian Agriculture and Forestry UniversityFuzhou350002China School of Chemistry and Materials EngineeringHuainan Normal UniversityHuainan232038China 

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

年 卷 期：2024年第42卷第11期

页      面：2033-2042,I0002页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Project supported by the Natural Science Foundation (NSF)of Anhui Province (2108085MB53) the NSF for Distinguished Young Scholars of Anhui University (2022AH020087) University NSF of Anhui Province(KJ2020A0647) 

主　　题：Phosphors Energy transfer Fluorescence intensity ratio Optical thermometry Rare earths 

摘      要：In this research,a series of Sm^(3+) doped CsLu(WO_(4))_(2) phosphors was prepared via high temperature solid phase technique to design new red phosphors and optical thermometric *** structures,morphology,band gap and luminescence properties were characterized by X-ray diffraction,scanning electron microscopy,diffuse reflection and luminescence spectra,*** UV excitation,CsLu(WO_(4))_(2) gives rise to a blue broad emission band between 350 and 700 nm,which stems from the ^(3)T_(1u)→^(1)A_(1g) transition of WO_(6)^(6-) *** Sm^(3+) is introduced into CsLu(WO_(4))_(2),energy transfer between WO_(6)^(6-) groups and Sm^(3+) ions takes place in CsLu(WO_(4))_(2):Sm^(3+)phosphors,and color-tunable luminescence from blue to red is realized by controlling the Sm^(3+) doping *** energy transfer efficiency between WO_(6)^(6-) groups and Sm^(3+) ons was analyzed,and the energy transfer mechanism was determined to be dipole-dipole *** to the temperature-dependent luminescence spectra,WO_(6)^(6-)groups and Sm^(3+)ions exhibit large discrepancy in thermal quenching rates,and thus the temperature sensing properties of CsLu(WO_(4))_(2):Sm^(3+) in the temperature range of 283-403 K were *** on the framework of fluorescence intensity ratio theory,the basic optical thermometry parameters including absolute and relative sensitivity of CsLu(WO_(4))_(2):Sm^(3+) we re calculated and the results show that it has great potential for application in optical thermometry.