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Photoluminescence properties of red europium doped calcium tungstate phosphors for blue-pumped light-emitting diodes
Zhang, W. J.; Feng, W. L.; Nie, Y. M.; wenlinfeng@126.com
2015
Source PublicationOPTIK
ISSN0030-4026
Volume126Issue:14Pages:1341-1343
AbstractA series of stable CaWO4:Eu3+ phosphors have been prepared by the hydrothermal method. Eu2O3 (99.99%), CaCl2 (A.R.), Na2WO4 center dot 2H(2)O (A.R.) are raw materials. The luminescent properties of the phosphors have been investigated by the different contents of the dopants in CaWO4 and the optimum concentration of as-synthesized phophors is 1.5 wt%. The structure, morphology and luminescent properties of the phosphors are characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and spectroscopy technology. The results showed that introduction of Eu did not change the crystal structure and morphology of CaWO4:Eu3+ phosphors. The strongest emission at 614nm is corresponding to D-5(0) -> F-7(2) transition of Eu3+ under 464 nm blue light excitation. The result reveals that CaWO4:Eu3+ is a promising red-emitting phosphor for blue LED applications. (C) 2015 Elsevier GmbH. All rights reserved.
description.department[zhang, w. j. ; feng, w. l. ; nie, y. m.] chongqing univ technol, sch optoelect informat, chongqing 400054, peoples r china ; [feng, w. l.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china
KeywordPhotoluminescence Phosphor Hydrothermal Method Cawo4:Eu3++
Funding OrganizationNatural Science Foundation Project of CQ [CSTC2011jjA50015, KJ120826, KJ130823]; Chinese Ministry of Education [212139]
Indexed Bysci
Language英语
WOS IDWOS:000357000300004
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75056
Collection中国科学院金属研究所
Corresponding Authorwenlinfeng@126.com
Recommended Citation
GB/T 7714
Zhang, W. J.,Feng, W. L.,Nie, Y. M.,et al. Photoluminescence properties of red europium doped calcium tungstate phosphors for blue-pumped light-emitting diodes[J]. OPTIK,2015,126(14):1341-1343.
APA Zhang, W. J.,Feng, W. L.,Nie, Y. M.,&wenlinfeng@126.com.(2015).Photoluminescence properties of red europium doped calcium tungstate phosphors for blue-pumped light-emitting diodes.OPTIK,126(14),1341-1343.
MLA Zhang, W. J.,et al."Photoluminescence properties of red europium doped calcium tungstate phosphors for blue-pumped light-emitting diodes".OPTIK 126.14(2015):1341-1343.
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