发光学报2024，Vol.45Issue(6)：943-951,9.DOI:10.37188/CJL.20240055
KYb2F7:2%Er3+荧光材料的制备、发光机制及温度传感性能
Preparation,Luminescence Mechanism and Temperature Sensing Properties of KYb2F7:2％Er3+
摘要
Abstract
The up-conversion luminescent material KYb2F7:2%Er3+was synthesized using the hydrothermal meth-od.The synthesized sample was confirmed to be pure phase with an orthorhombic morphology by X-ray diffraction and scanning electron microscopy.Under 980 nm laser excitation,the sample exhibited two green emission peaks at 527 nm and 543 nm,as well as a dominant red emission peak at 655 nm.The temperature-dependent upconversion(UC)emission spectra showed that the emission intensity at 545 nm and 655 nm exhibited thermal quenching with in-creasing temperature.Based on the mechanism of thermal coupling temperature measurement,the temperature sens-ing performance of 2H11/2→4I11/2 and 4S3/2→4I11/2 thermal coupling energy levels of Er3+was studied,and the luminous intensity ratio(LIR),absolute sensitivity(Sa),relative sensitivity(Sr),temperature uncertainty(δT),and repeat-ability(R)of the luminous thermometer were calculated.The maximum relative sensitivity was 0.99%·K-1 at 313 K,the minimum temperature uncertainty was 0.73 K at 313 K,and the repeatability exceeded 99%,ensuring the reli-ability of the thermometer.All the experimental results indicate that KYb2F7:2%Er3+has potential application value in temperature sensing.关键词
水热法/KYb2F7:Er3+/上转换发光/温度传感Key words
hydrothermal method/KYb2F7:Er3+/up-conversion luminescence/temperature sensing performance分类
数理科学引用本文复制引用
李欣耘,代萌萌,付作岭..KYb2F7:2%Er3+荧光材料的制备、发光机制及温度传感性能[J].发光学报,2024,45(6):943-951,9.基金项目
国家自然科学基金(12374374) （12374374）
吉林省科技发展计划重点项目(20230201060GX) （20230201060GX）
吉林大学研究生创新研究计划项目(2023CX043)Supported by National Natural Science Foundation of China(12374374) （2023CX043）
The Key Projects of Jilin Province Science and Tech-nology Development Plan(20230201060GX) （20230201060GX）
The Graduate Innovation Fund of Jilin University(2023CX043) （2023CX043）
