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Visible quantum cutting via downconversion in a novel green-emitting K2Gd(WO4)(PO4):Tb3+ phosphor
Han, LL; Wang, YH; Zhang, J; Tao, Y;陶冶
2014
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
EISSN1879-3312
Volume143Issue:2Pages:476-479
AbstractA novel phosphor K2Gd(WO4)(PO4):Tb was prepared via a solid-state reaction. The crystal structure of K2Gd(WO4)(PO4) as a new host matrix for luminescence was defined to be the orthorhombic system with space group Ibca (73). Visible quantum cutting under Tb3+ 4f(8)-4f(7)5d(1) excitation and host excitation in K2Gd(WO4)(PO4):Tb3+ via a downconversion was identified. In order to rationalize the quantum cutting effect, the proper mechanism was proposed. According to calculations, the quantum efficiency was up to 183.2% and 176.4% under excitation at 235 nm and 150 nm, respectively. When compared with Zn2SiO4:Mn2+ (P1-G1S), KGWP:0.5Tb(3+) is slightly less bright over 450-650 nm but has a shorter decay time. (C) 2013 Elsevier B.V. All rights reserved.
KeywordInorganic compounds Optical materials Luminescence Optical properties
Subject AreaMaterials Science
DOI10.1016/j.matchemphys.2013.10.017
Indexed BySCI
Language英语
WOS IDWOS:000329888300002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/225176
Collection多学科研究中心
Recommended Citation
GB/T 7714
Han, LL,Wang, YH,Zhang, J,et al. Visible quantum cutting via downconversion in a novel green-emitting K2Gd(WO4)(PO4):Tb3+ phosphor[J]. MATERIALS CHEMISTRY AND PHYSICS,2014,143(2):476-479.
APA Han, LL,Wang, YH,Zhang, J,&Tao, Y;陶冶.(2014).Visible quantum cutting via downconversion in a novel green-emitting K2Gd(WO4)(PO4):Tb3+ phosphor.MATERIALS CHEMISTRY AND PHYSICS,143(2),476-479.
MLA Han, LL,et al."Visible quantum cutting via downconversion in a novel green-emitting K2Gd(WO4)(PO4):Tb3+ phosphor".MATERIALS CHEMISTRY AND PHYSICS 143.2(2014):476-479.
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