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Photoluminescence of Tb3+ and Mn2+ activated Ca8MgGd(PO4)(7) under vacuum ultraviolet excitation
Zhang, J; Wang, YH; Huang Y(黄艳); Huang, Y
2011
发表期刊OPTICAL MATERIALS
卷号33期号:8页码:1325-1330
通讯作者[Zhang, Jia ; Wang, Yuhua] Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China ; [Huang, Yan] Chinese Acad Sci, Lab Beijing Synchrotron Radiat, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要Novel Tb3+ and Mn2+ activated Ca8MgGd(PO4)(7) phosphors were synthesized by solid-state reaction and their photoluminescence properties in vacuum ultraviolet region were investigated for the first time. It can be observed from the excitation spectra that the host-related absorption band is located around 170 nm, and it overlaps the O2- -> Tb3+ charge transfer band of Ca8MgGd(PO4)(7):Tb3+ around 161 nm and the (3)d(5) -> 3d(4)4s transition band of Ca8MgGd(PO4)(7):Mn2+ near 200 nm. The 4f-4f 5d spin-allowed and spin-forbidden transitions of Tb3+ are verified to be located at 170-250 and 257-271 nm, respectively. Upon 147 nm excitation, the dominant emission peak intensity of the Ca8MgGd0.1(PO4)(7):0.9Tb(3+) phosphor is about 2.7 times stronger than that of the commercial Zn2SiO4:Mn2+ green phosphor, and the brightness of the former with a short decay time of 2.5 ms is about 98% of the latter's. The Ca8MgGd(PO4):Mn2+ phosphor excited at 147 nm exhibits a deep red emission around 650 nm, which could be attributed to the T-4(1) -> (6)A(1) transition of Mn2+, with the CIE index (0.679, 0.321). In a word, the results above indicate that both Tb3+ and Mn2+ activated Ca8MgGd(PO4)(7) phosphors could be promising for PDP or Hg-free lamp applications. (C) 2011 Elsevier B.V. All rights reserved.
关键词Photoluminescence Phosphor PDPs Hg-free lamps
学科领域Materials Science; Optics
研究领域[WOS]Materials Science ; Optics ; Materials Science ; Optics
DOI10.1016/j.optmat.2011.03.022
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语种英语
研究领域[WOS]Materials Science ; Optics ; Materials Science ; Optics
WOS类目Materials Science, Multidisciplinary ; Optics
WOS记录号WOS:000292231200032
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239280
专题多学科研究中心
实验物理中心
粒子天体物理中心
作者单位中国科学院高能物理研究所
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Zhang, J,Wang, YH,Huang Y,et al. Photoluminescence of Tb3+ and Mn2+ activated Ca8MgGd(PO4)(7) under vacuum ultraviolet excitation[J]. OPTICAL MATERIALS,2011,33(8):1325-1330.
APA Zhang, J,Wang, YH,黄艳,&Huang, Y.(2011).Photoluminescence of Tb3+ and Mn2+ activated Ca8MgGd(PO4)(7) under vacuum ultraviolet excitation.OPTICAL MATERIALS,33(8),1325-1330.
MLA Zhang, J,et al."Photoluminescence of Tb3+ and Mn2+ activated Ca8MgGd(PO4)(7) under vacuum ultraviolet excitation".OPTICAL MATERIALS 33.8(2011):1325-1330.
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