用于高显色指数暖白色发光二极管的红色磷光体RbNbOF:Mn
Red Phosphor RbNbOF:Mn for Warm White Light-Emitting Diodes with a High Color-Rendering Index.
作者信息
Wang Zhengliang, Yang Zhiyu, Yang Zhaofeng, Wei Qianwen, Zhou Qiang, Ma Li, Wang Xiaojun
机构信息
Key Laboratory of Green-Chemistry Materials in University of Yunnan Province, Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan, School of Chemistry & Environment , Yunnan Minzu University , Kunming 650500 , P. R. China.
Department of Physics and Astronomy , Georgia Southern University , Statesboro , Georgia 30460 , United States.
出版信息
Inorg Chem. 2019 Jan 7;58(1):456-461. doi: 10.1021/acs.inorgchem.8b02676. Epub 2018 Dec 11.
We successfully prepared a red-emitting phosphor RbNbOF doped with Mn, and investigated its crystal structure, luminescent properties, and applications in detail. Mn ions in RbNbOF exhibit an intense red emission with high color purity upon a broad excitation in the blue region. The related crystal-field parameters of Mn in RbNbOF have been estimated according to the luminescent spectra. More importantly, RbNbOF:Mn has high thermal-quenching resistance and color stability. We further fabricated a warm white light-emitting diode using the phosphor, emitting intense white light with a high color-rendering index of 90 and a low color temperature of 3418 K. The results indicate that RbNbOF:Mn is a potential red-emitting phosphor for white light-emitting diodes.
我们成功制备了掺杂锰的红色发光荧光粉RbNbOF，并详细研究了其晶体结构、发光性能及应用。RbNbOF中的锰离子在蓝光区域的宽激发下呈现出高色纯度的强烈红色发射。根据发光光谱估算了RbNbOF中锰的相关晶体场参数。更重要的是，RbNbOF:Mn具有高抗热猝灭性和颜色稳定性。我们进一步使用该荧光粉制造了一个暖白色发光二极管，发出的强光具有90的高显色指数和3418 K的低色温。结果表明，RbNbOF:Mn是一种有潜力的用于白色发光二极管的红色发光荧光粉。
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