Novel single-host Al1-xSixCxN1-x: Mn2+ white phosphors for field emission displays
Novel single-host Al1-xSixCxN1-x: Mn2+ white phosphors for field emission displays
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新型单主体 Al1-xSixCxN1-x：用于场致发射显示器的 Mn2 白色荧光粉
DOI：
10.1007/s10854-017-6558-6
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发表时间：
2017
影响因子：
2.8
通讯作者：
Li Huili
中科院分区：
文献类型：
--
作者：
YuWen Minghua;Liu Jiaqing;Xia Chao;Liu Ze;Yu Caiyan;Li Huili
通过在AlN：Mn中引入SiC，在1500 ℃的低温下合成了一种新型的AlSiCN：Mn碳氮化合物白光荧光粉。采用XRD、EDS、固态NMR、FESEM、PL等手段系统研究了Mn和SiC掺杂浓度对样品结构、形貌和发光性能的影响。较低的煅烧温度赋予AlN：Mn不同的发光性能。在254 nm紫外光激发下，它不仅表现出Mn的特征红光发射，而且还覆盖了缺陷的宽的紫-蓝-绿色发射。CIE坐标（0.2999，0.2510）精确位于白色区域。随着SiC的引入，观察到Mn的红光发射增加，而缺陷发射没有发生变化。对于x= 0.05的组合物获得最大的红色发光，其具有提高20%的热稳定性。最后，用AlSiCN：0.7%Mn碳氮化合物荧光粉制作了低压场发射显示器件。在低电压激发下，AlSiCN：Mn具有高亮度、低饱和度和良好的色稳定性，是一种很有潜力的全色FED荧光粉。
A white-emitting novel AlSi CN: Mn carbidonitride phosphor was synthesized by introducing SiC into AlN: Mnat the temperature as low as 1500 C. The influence of Mn and SiC doping concentration on the structure, morphology and luminescent properties was systematically investigated by XRD, EDS, solid state NMR, FESEM, and PL. The relatively low calcination temperature endows AlN: Mn with different luminescent properties. Under 254 nm UV excitation, it not only exhibits a characteristic red emission from Mn but also covers a broad violet-blue-green emission from defects. The CIE coordinates (0.2999, 0.2510) precisely locate in the white region. With the introduction of SiC, an increasing of the red emission from Mn is observed, while no variation occurs for the defect emission. The maximum red luminescence is attained for the composition of x= 0.05 that has an improved thermal stability by 20%. Finally, a low-voltage FED device was fabricated by using AlSiCN: 0.7% Mn carbidonitride phosphor. Under low-voltage excitation, it exhibits a high brightness, low saturation, and good color stability, which makes AlSiCN: Mn carbidonitride phosphor have a great potential for full color FEDs.