一种新型氟化物红色荧光粉BaTaF_(7)∶Mn^(4+)  

A Novel Red Fluoride Phosphor BaTaF_(7)∶Mn^(4+)

作　　者：孔俊人 周洋 张世瑞 李蕊芯 王晓明 焦桓[1] KONG Junren;ZHOU Yang;ZHANG Shirui;LI Ruixin;WANG Xiaoming;JIAO Huan(School of Chemistry&Chemical Engineering,Shaanxi Normal University,Xi'an 710119,China)

机构地区：[1]陕西师范大学化学化工学院,陕西西安710119

出　　处：《发光学报》2023年第6期975-984,共10页Chinese Journal of Luminescence

基　　金：国家自然科学基金(51972203,22271180)。

摘　　要：采用共沉淀方法合成了一种新型氟化物红色荧光粉BaTaF_(7)∶Mn^(4+),确定了BaTaF_(7)的组成与晶体结构,研究并讨论了晶体结构与发光性能之间的关系。在紫外(UV)和蓝光激发下,BaTaF_(7)∶Mn^(4+)荧光粉在630 nm表现出强烈的零声子线(ZPL)发射,其源于晶体结构中[MnF_(7)]畸变八面体的C3v群对称环境。由YAG∶Ce3+和BaTaF_(7)∶Mn^(4+)荧光粉混合制备的暖白光LED表现出较优异的性能,表明BaTaF_(7)∶Mn^(4+)具有成为暖白色发光二极管红色荧光粉的应用潜力。A novel red fluoride phosphor BaTaF_(7)∶Mn^(4+)was synthesized via the conventional co-precipitation method.The structure and luminescence properties of BaTaF_(7)∶Mn^(4+)were investigated and discussed under various conditions.The BaTaF_(7)∶Mn^(4+)phosphor shows strong ZPL emission intensity at about 630 nm under ultraviolet(UV)and blue light excitation.It originated from the highly distorted Mn^(4+)octahedral coordination environment in the C3v group symmetry.A warm LED fabricated with a blend of YAG∶Ce3+and the BaTaF_(7)∶Mn^(4+)phosphor showed excellent performance,indicating BaTaF_(7)∶Mn^(4+)potential for application as a red phosphor for warm WLEDs.

关 键 词：氟化物 Mn^(4+)掺杂 红色荧光粉 零声子线 暖白色发光二极管 

分 类 号：O482.[理学—固体物理]