Synthesis and photoluminescence investigations of the white light emitting phosphor, vanadate garnet, Ca2NaMg2V3O12 co-doped with Dy and Sm
Synthesis and photoluminescence investigations of the white light emitting phosphor, vanadate garnet, Ca2NaMg2V3O12 co-doped with Dy and Sm
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DOI：
10.1016/j.jlumin.2011.09.004
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发表时间：
2012-02-01
影响因子：
3.6
通讯作者：
Godbole, S. V.
中科院分区：
文献类型：
--
作者：
Dhobale, A. R.;Mohapatra, M.;Godbole, S. V.
通过固态反应路线合成了单独掺杂 Dy 和 Sm 以及共掺杂稀土离子的钒酸盐石榴石体系 Ca2NaMg2V3O12，并研究了它们的光致发光（PL）性能。通过 X 射线衍射 (XRD) 研究形成单相化合物来验证合成方法。通过 PL 研究确定主体离子和掺杂离子之间存在能量转移。计算所有化合物的颜色坐标并绘制在 CIE 图上。可以看出，共掺杂系统具有接近白光的发射。结论是，这种单一磷光体能够将 UV-LED 的紫外线发射转换为白光。 (C) 2011 Elsevier B.V. 保留所有权利。
Vanadate garnet systems namely Ca2NaMg2V3O12, individually doped with Dy and Sm and also co-doped with both the RE ions were synthesized via the solid-state reaction route and their photoluminescence (PL) properties were investigated. The method of synthesis was verified by the formation of single phase compound through X-ray diffraction (XRD) studies. Existence of energy transfer in between the host and the dopant ions was established by PL investigation. Color coordinates of all the compounds were calculated and plotted on the CIE diagram. It was seen that the co-doped system has a near white light emission. It was concluded that this single phosphor is capable of converting the ultraviolet emission of a UV-LED into white light. (C) 2011 Elsevier B.V. All rights reserved.