光致发光
荧光粉
色度
材料科学
铒
发光
离子
兴奋剂
激发态
单斜晶系
分析化学(期刊)
光致发光激发
锡酸盐
猝灭(荧光)
光电子学
光化学
光学
荧光
晶体结构
结晶学
化学
原子物理学
物理
锌
有机化学
冶金
色谱法
作者
Yang Zhou,Xinchen Ge,Zhuohui Zhang,Wenjie Luo,Hang Xu,Wufu Li,Jing Zhu
标识
DOI:10.1016/j.ceramint.2019.06.268
摘要
We have employed the solid-state chemical reaction to construct series of trivalent erbium ions activated NaLaP4O12 (abbreviated as: NLP) phosphors. The structural investigation indicates that NLP:Er3+ crystalline products are purely monoclinic phase with micron particles. Trivalent erbium ions with the substitution for lanthanum are successfully inserted into NLP host lattice. The UV–Vis diffuse reflectance absorption performance, doping Er3+ content-dependent downconversion photoluminescence, content quenching mechanism were reported in this paper. Upon near UV (378 nm) excitation, yellow/yellow-green visible light with the dominant 4S3/2 → 4I15/2 emission of trivalent erbium is displayed. Yellow-green emitting NLP:2%Er3+ sample has the maximum intensity and main luminescent peaks at 541 and 549 nm. The content quenching is related to the dipolar interaction. Additionally, the detailed investigation on CIE chromaticity coordinates, CP and CCT reveals that the title product has promising application in the field of white LEDs excited by near UV light.
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