荧光粉
材料科学
离子
光致发光
发光
分析化学(期刊)
兴奋剂
发射光谱
激发
谱线
发射强度
强度(物理)
光学
光电子学
化学
物理
天文
量子力学
色谱法
有机化学
出处
期刊:Materialia
[Elsevier]
日期:2021-03-01
卷期号:15: 100982-100982
被引量:3
标识
DOI:10.1016/j.mtla.2020.100982
摘要
In this paper, the temperature-dependent photoluminescence properties of Ba1-xMgSiO4:xEu2+ (0.01≤x ≤ 0.07) are investigated. The room temperature excitation and emission spectra indicate that the doping Eu2+ ions occupy three different Ba2+ sites. With rising the temperature, the spectra shape of Ba1-xMgSiO4:xEu2+ (x = 0.02) changes significantly in the region of 400–650 nm. The emission at 492 nm has a significant red-shift. The intensity of the emission displays a nonlinear dependence on the temperature. The temperature-dependent luminescent properties are systematically investigated by analyzing the energy transfer among the Eu2+ ions in Ba1-xMgSiO4:xEu2+ (0.01≤x ≤ 0.07). When the temperature rises from 298 to 523 K, the color coordinates of Ba1-xMgSiO4:xEu2+ (x = 0.02) first shift to the green and then to the red region. The maximal value of the absolute and relative sensitivity of Ba1-xMgSiO4:xEu2+ (x = 0.02) is 4.242 × 10−3 K−1 (at 423 K) and 0.3244% K−1 (at 398 K), respectively.
科研通智能强力驱动
Strongly Powered by AbleSci AI