VIV-UV excited luminescent properties of LnCa4O(BO3)3 : RE3+(Ln = Y, La, Gd; Re=Eu, Tb, Dy, Ce)
Yang, HC; Li, CY; He, H; Tao, Y; Xu, JH; Su, Q; Tao Y(陶冶); Xu JH(徐建华)
刊名JOURNAL OF LUMINESCENCE
2006
卷号118期号:1页码:#REF!
关键词calcium lanthanide oxyborate rare-earth ions VUV luminescence
学科分类Optics
DOI10.1016/j.jlumin.2005.06.007
通讯作者Su, Q (reprint author), Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China.
文章类型Article
英文摘要Calcium lanthanide oxyborate doped with rare-earth ions LnCa(4)O(BO(3))(3):RE(3+) (LnCOB:RE, Ln = Y, La, Gd, RE = Eu, Tb, Dy, Cc) was synthesized by the method of solid-state reaction at high temperature. Their fluorescent spectra were measured from vacuum ultraviolet (VUV) to visible region at room temperature. Their excitation spectra all have a broadband center at about 188 nm, which is ascribed to host absorption. Using Dorenbos' and J phi rgensen's work [P. Dorenbos, J. Lumin. 91 (2000) 91, R. Resfeld, C.K. J phi rgensen. Lasers and Excite States of Rare Earth [M], Springer, Berlin, 1977, p. 45], the position of the lowest 5d levels E(Ln,A) and charge transfer band E(ct) were calculated and compared with their excitation spectra. Eu(3+) and Tb(3+) ions doped into LnCOB show efficient luminescence under VUV and UV irradiation. In this system, Ce(3+) ions do not show efficient luminescence and quench the luminescence of Tb(3+) ions when Tb(3+) and Ce(3+) ions are co-doped into LnCOB. GdCOB doped with Dy(3+) shows yellowish white light under irradiation of 254 nm light for the reason that Gd ions transfer the energy from itself to Dy. Because of the existence of Gd, the samples of GdCOB:RE(3+) show higher excitation efficiency than LaCOB:RE(3+) and YCOB:RE(3+) around 188 nm, which indicates that the Gd(3+) ions have an effect on the host absorption and can transfer the excitation energy to the luminescent center such as Tb(3+), Dy(3+) and Eu(3+). (c) 2005 Elsevier B.V. All rights reserved.
类目[WOS]Optics
收录类别SCI
WOS记录号WOS:000235103600007
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被引频次:57[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225837
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Yang, HC,Li, CY,He, H,et al. VIV-UV excited luminescent properties of LnCa4O(BO3)3 : RE3+(Ln = Y, La, Gd; Re=Eu, Tb, Dy, Ce)[J]. JOURNAL OF LUMINESCENCE,2006,118(1):#REF!.
APA Yang, HC.,Li, CY.,He, H.,Tao, Y.,Xu, JH.,...&徐建华.(2006).VIV-UV excited luminescent properties of LnCa4O(BO3)3 : RE3+(Ln = Y, La, Gd; Re=Eu, Tb, Dy, Ce).JOURNAL OF LUMINESCENCE,118(1),#REF!.
MLA Yang, HC,et al."VIV-UV excited luminescent properties of LnCa4O(BO3)3 : RE3+(Ln = Y, La, Gd; Re=Eu, Tb, Dy, Ce)".JOURNAL OF LUMINESCENCE 118.1(2006):#REF!.
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