Synthesis and photo-luminescent properties of new red phosphor SrGe4O9:Mn4+
Synthesis and photo-luminescent properties of new red phosphor SrGe4O9:Mn4+
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DOI：
10.1016/j.matlet.2015.08.091
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发表时间：
2015-12
影响因子：
3
通讯作者：
Wangqing Shen;Y. Liu;Zhengliang Wang
中科院分区：
文献类型：
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作者：
Wangqing Shen;Y. Liu;Zhengliang Wang
采用高温反应法制备了一系列掺杂Mn4+的红色荧光粉srge4o9。研究了这些荧光粉的结构、形态和发光性能。这些荧光粉在655 nm处表现出强烈的，锐利的红色发射，在紫外和蓝光区域具有广泛的激发。在所制备的荧光粉中，SrGe3.976O9:0.024Mn4+样品的红色发射最强。将该红色荧光粉涂覆在蓝色LED芯片上制备了发光二极管，并研究了其在20ma电流激励下的电致发光性能。结果表明，该荧光粉有可能应用于蓝色GaN LED芯片。
A series of red-emitting phosphors SrGe4O9doped with Mn4+were prepared by the high temperature reaction. The structure, morphology and photo-luminescent (PL) properties of these phosphors were investigated. These phosphors exhibit strong, sharp red emission at 655 nm with broad excitation in the UV and blue light regions. Among these as-prepared phosphors, the sample SrGe3.976O9:0.024Mn4+shows the strongest red emission. The light-emitting diodes (LEDs) were fabricated by coating this red phosphor on blue LED chips, and their electro-luminescent (EL) properties were studies under 20 mA current excitation. The results indicated that this phosphor maybe find application on the blue GaN LED chip.