硅酸盐学报2022，Vol.50Issue(9)：2493-2500,8.DOI:10.14062/j.issn.0454-5648.20220005
掺钕M'-型钽酸钆微晶荧光的温度和压力依赖性
Temperature and Pressure Dependences of Luminescence from Nd-Doped M'-Type Gadolinium Tantalate Microcrystals
摘要
Abstract
M'-type Nd3+:GdTaO4 microcrystals, synthetized by a molten salt synthesis method, were investigated via temperature-/pressure-dependent photoluminescence measurement. In the test temperature range 293–373 K, the spectral positions of emissions from 3F3/2→4I9/2 transition exhibit high thermal stabilities. The temperature coefficient of 3F3/2(R2)→4I9/2(Z5) transition is only 0.0039 cm–1·K?1. The intensity ratio between transitions of 3F3/2(R2)→4I9/2(Z2) and 3F3/2(R1)→4I9/2(Z2) has a large temperature dependence, and its relative sensitivity in the physiological temperature range is (0.60–0.52)(％·K–1). In the test pressure range 105 Pa–11.39 GPa, all the transitions linearly shift with pressure. The spectral position of 3F3/2(R2)→4I9/2(Z5) transition is very sensitive to pressure, with a sensitivity of 15.18 cm–1·GPa?1. The intensities and spectral widths of the transitions in the heating and compression processes were also analyzed. Compared with the other optical sensors in the near-infrared wavelength range, the good performance of M'-type Nd3+:GdTaO4 in temperature and pressure sensing was revealed.关键词
钕离子/稀土钽酸盐/光致发光/温度传感/压力传感Key words
neodymium ion/rare-earth tantalate/photoluminescence/temperature sensing/pressure sensing分类
数理科学引用本文复制引用
李晗,周鹏宇..掺钕M'-型钽酸钆微晶荧光的温度和压力依赖性[J].硅酸盐学报,2022,50(9):2493-2500,8.基金项目
国家自然基金委青年基金(11804047). （11804047）
