Mn4+-activated BaSiF6 red phosphor: Hydrothermal synthesis and dependence of its luminescent properties on reaction conditions
Mn4+-activated BaSiF6 red phosphor: Hydrothermal synthesis and dependence of its luminescent properties on reaction conditions
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DOI：
10.1016/j.matchemphys.2015.12.015
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发表时间：
2016-02
影响因子：
4.6
通讯作者：
Qiang Zhou;Yayun Zhou;F. Lu;Y. Liu;Qin Wang;Lijun Luo;Zhengliang Wang
中科院分区：
文献类型：
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作者：
Qiang Zhou;Yayun Zhou;F. Lu;Y. Liu;Qin Wang;Lijun Luo;Zhengliang Wang
本文采用水热法合成了一系列BaSiF 6：Mn 4+红色荧光粉。采用粉末X射线衍射（XRD）、扫描电镜（SEM）和能谱仪（EDS）对样品的晶体结构和形貌进行了表征。系统研究了KMnO 4浓度、HF浓度、反应温度和反应时间等反应条件对光致发光性能的影响。在蓝光（λ 458 nm）照射下，它能发出强烈的红光（λ 636 nm）。基于YAG：Ce-BaSiF 6：Mn 4+混合物的白色LED器件显示出低色温和高相关色指数的暖白色光，显示了其在WLED中的潜在应用。
In this work, a series of BaSiF6:Mn4+red phosphors were synthesized through a hydrothermal route. The crystal structure and morphology were characterized by powder X-ray diffraction (XRD) with Rietveld refinement, scanning electron microscopy (SEM), and energy dispersive spectrometer (EDS) in detail. The influence of reaction conditions, including the concentration of KMnO4and HF, reaction temperature and time, on the photoluminescence properties were investigated systematically. It can emit intense red light (∼636 nm) under blue light (∼458 nm) illumination. The white LED device based on YAG:Ce–BaSiF6:Mn4+mixture shows warm white light with low color temperature and high correlated color index, which reveals its potential application in WLED.