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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
发表期刊OPTIK
ISSN0030-4026
卷号126期号:14页码:1341-1343
摘要A 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.
部门归属[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
关键词Photoluminescence Phosphor Hydrothermal Method Cawo4:Eu3++
资助者Natural Science Foundation Project of CQ [CSTC2011jjA50015, KJ120826, KJ130823]; Chinese Ministry of Education [212139]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75056
专题中国科学院金属研究所
通讯作者wenlinfeng@126.com
推荐引用方式
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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