主发射波长大于631 nm的Mn^(4+)激活氟化物荧光粉  

Mn^(4+)-activated Fluoride Phosphors with Dominant Photoluminescence Wavelength Longer than 631 nm

作　　者：董效良 张明欣 张丽莹 姬海鹏 DONG Xiaoliang;ZHANG Mingxin;ZHANG Liying;JI Haipeng(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001

出　　处：《发光学报》2024年第10期1613-1621,共9页Chinese Journal of Luminescence

基　　金：河南省自然科学基金(242300421227);郑州大学基础研究培育基金(JC23560029);国家自然科学基金(51902291)。

摘　　要：利用比目前商用Mn^(4+)激活氟化物红粉主发射波长更长的红粉封装所得白光LED为背光源的液晶显示可以实现更广的显色色域。本文对已报道的主发射波长较长(632~637 nm)的Mn^(4+)激活氟化物红粉进行总结,并对其发射波长如何受被取代离子价态与半径、所形成八面体畸变程度、邻位阳离子的极化力等因素的影响进行了讨论。A liquid crystal display,if lit by the white light-emitting diodes backlight that fabricated with a fluoride red phosphor showing a dominant photoluminescence emission wavelength longer than that of the commercially used fluoride phosphor,would exhibit a broadened color gamut.This review summarizes the Mn^(4+)-activated fluoride phosphors that exhibit their dominating luminescence wavelength in the range of 632 nm to 637 nm.A comprehensive analysis was conducted to elucidate the correlation between the luminescence wavelengths and factors,including the valence and effective ionic radius of the cation being substituted,the octahedral distortion,the polarization force of adjacent cations,etc.

关 键 词：Mn^(4+) 红光荧光粉 氟化物 长发射波长 

分 类 号：O482.31[理学—固体物理]