人工晶体学报2024，Vol.53Issue(1)：115-122,8.
新型硅酸盐型荧光粉K3(Y0.88Yb0.10Ho0.02)Si2O7的上转换光致发光及光学测温性能研究
Up-Conversion Photoluminescence and Optical Thermometry Properties of Novel Silicate K3(Y0.88Yb0.10Ho0.02)Si2O7 Phosphor
摘要
Abstract
In this work,a new type of silicate K3(Y0.88Yb0.10Ho0.02)Si2O7 phosphor was synthesized by solid state method.The up-conversion photoluminescence and optical thermometry properties of samples were systematically studied.The results show that K3(Y0.88Yb0.10Ho0.02)Si2O7 phosphor exhibits red emission under 980 nm excitation.The main emission peak is located at 665 nm,which is attributed to the 5F5 →5I8 transition of Ho3+.The up-conversion mechanism of the phosphor and the photon reaction which may lead to up-conversion were studied by logarithmic transformation of the luminescence intensity and excitation power.It is proved that the up-conversion luminescence process for the(5S4,5F2)→5I8 transition is a three-photon mechanism,and the 5F5 →5I8 transition is a two-photon mechanism.The fluorescence intensity ratio of the 5F5/(5F4,5S2)non-thermal coupling energy level of K3(Y0.88Yb0.10Ho0.02)Si2O7 phosphor shows its good optical thermometry potential,and the maximum sensitivity is calculated to be about 0.17 K-1(423 K).关键词
上转换/硅酸盐/光学测温/稀土发光/光致发光/固相法Key words
up-conversion/silicate/optical thermometry/rare earth luminescence/photoluminescence/solid state method分类
化学化工引用本文复制引用
滕雨含,王建通,龚长帅,王渤文,薛绪岩,王雪娇..新型硅酸盐型荧光粉K3(Y0.88Yb0.10Ho0.02)Si2O7的上转换光致发光及光学测温性能研究[J].人工晶体学报,2024,53(1):115-122,8.基金项目
辽宁省自然科学基金(2020-MS-286) （2020-MS-286）
