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Efficient near-infrared quantum cutting in Tb3+,Yb3+ codoped LuPO_4 phosphors
  • ISSN号:1002-0721
  • 期刊名称:《中国稀土学报:英文版》
  • 时间:0
  • 分类:TF[冶金工程]
  • 作者机构:College of Sciences, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • 相关基金:supported by the National Natural Science Foundation of China(11404047,11674044,11604037); Chongqing Research Program of Basic Research and Frontier Technology(CSTC2016JCYJA0113,CSTC2016JCYJA0207,CSTC2015JCYJA50005); Research Training Program for Undergraduates of Chongqing University of Posts and Telecommunications(A2015-86,A2016-53)
中文摘要:

Tb 3+ 和 Yb 3+ codoped LuPO 4 黄磷被反向罢工的一起沉淀方法准备。获得的 LuPO 4:Tb3+,Yb3+ 黄磷被 X 光检查衍射(XRD ) 描绘,理解切的在红外线附近的量(质量管理) 的光致发光(PL ) 系列和腐烂动力学现象。XRD 结果证明所有黄磷展出了好 crystallinity 并且有 LuPO 4 的一个纯四角形的阶段。试验性的结果证明在从 Tb 3+ 的 545 nm 附近的强壮的绿排放(5 D 47 F 5) 并且在红外线附近(NIR ) 在从 Yb 3+ 的 1003 nm 的排放(2 F 5/22 LuPO 4:Tb3+,Yb3+ 黄磷的 F 7/2) 分别地在 489 nm 刺激下面被观察。两个的光性质和一生上的 Yb 3+ 集中依赖可见并且 NIR 排出物也被调查。Yb 3+ 离子的熄灭的集中象 10 mol.% 一样高来临了。LuPO 4:Tb3+,Yb3+ 的优秀的光性质显示它在改进硅的精力变换 eficiency 的潜在的申请由把一个蓝光子变换成二 NIR 基于太阳能电池。

英文摘要:

Tb~(3+) and Yb~(3+) codoped LuPO_4 phosphors were prepared by the reverse-strike co-precipitation method.The obtained LuPO_4:Tb~(3+),Yb~(3+) phosphors were characterized by X-ray diffraction(XRD),photoluminescence(PL) spectra and decay kinetics to understand the near-infrared quantum cutting(QC) phenomena.The XRD results showed that all the phosphors exhibited good crystallinity and had a pure tetragonal phase of LuPO_4.The experimental results showed that the strong green emission around 545 nm from Tb~(3+)(~5D_4→~7F_5) and near-infrared(NIR) emission at 1003 nm from Yb~(3+)(~2F_(5/2)→~2F_(7/2)) of LuPO_4:Tb~(3+),Yb~(3+)phosphors were observed under 489 nm excitation,respectively.The Yb~(3+) concentration dependence on luminescent properties and lifetimes of both the visible and NIR emissions were also investigated.The quenching concentration of Yb~(3+) ions approached as high as 10 mol.%.The excellent luminescence properties of the LuPO_4:Tb~(3+),Yb~(3+) indicated its potential application in improving the energy conversion efficiency of the silicon based solar cells by converting one blue photon to two NIR ones.

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期刊信息
  • 《中国稀土学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国稀土学会
  • 主编:徐光宪
  • 地址:北京新街口外大门2号
  • 邮编:100088
  • 邮箱:jrechina@263.net
  • 电话:010-62014832
  • 国际标准刊号:ISSN:1002-0721
  • 国内统一刊号:ISSN:11-2788/TF
  • 邮发代号:2-613
  • 获奖情况:
  • 优秀科技期刊奖,中国科协择优资助期刊,中国期刊方阵“双效”期刊
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  • 被引量:1055