Advances in Theoretical Research on Eu2+ Doped Narrow-band Emitting Fluorescent Materials

被引：0
|
作者：
Zhu K.-L. [1 ]
You H.-H. [1 ]
Gao F.-M. [1 ]
Jia Y.-C. [1 ]
机构：
[1] School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2022年 / 43卷 / 09期
关键词：
coordination environment; Eu[!sup]2+[!/sup]- doped phosphors; narrow emission; phonon frequency; Stokes shift;
D O I：
10.37188/CJL.20220189
中图分类号：
学科分类号：
摘要：
In recent years， narrow-band emitting phosphors used to fabricate white LEDs play an important role in reducing energy consumption， improving light quality， and maintaining chromaticity stability， and have been widely paid attention to by researchers. The unique character of the 4f-5d transition of Eu2+ ions with host dependence provides the possibility of the design of Eu2+-activated narrow-band emitting phosphors. However， most of the works relies on trial and error， and theoretical understanding is lacking of the emission width of Eu2+ ions in solids. With this background， here we review the theoretical efforts on this topic in the past ten years. Based on configuration coordinate diagram， the effect of structure rigidity， local environment and phonon frequency on full-width at half-maximum（FWHM） of Eu2+ ions have been analyzed. The obtained conclusions are expected to give the design clue for the related experimentalist. © 2022 Chines Academy of Sciences. All rights reserved.
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页码：1405 / 1412
页数：7
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