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Luminescence enhancement in the sr2znw1-xmoxo6:eu3+,li+ phosphor for near ultraviolet based solid state lighting

文献类型:期刊论文

作者Li, Li1,2; Pan, Yu1; Zhou, Xianju1; Zhao, Chenglong3,4; Wang, Yongjie2; Jiang, Sha1; Suchocki, A.1,2; Brik, M. G.1,5,6
刊名Journal of alloys and compounds
出版日期2016-11-15
卷号685页码:917-926
ISSN号0925-8388
关键词Double perovskite Luminescence Phosphor White light-emitting diodes
DOI10.1016/j.jallcom.2016.06.255
通讯作者Li, li(lilic@cqupt.edu.cn)
英文摘要A series of the sr1.9znw1-xmoxo6:0.05eu(3+),0.05li(+) phosphors was synthesized by high-temperature solid-state reaction method. the structure, ultraviolet-visible diffuse reflectance spectra, photoluminescence and decay properties of the phosphors were investigated as a function of the w/mo ratio. all prepared mixed compounds have a cubic structure. the experimental spectroscopic results show the excitation bands of these phosphors is in the near ultraviolet region; the red-shift of these bands is observed upon increase of the mo concentration. the strong red and weak orange-red emissions centered at 614 and 595 nm, respectively, were observed, which indicates that eu3+ occupies the non-centrosymmetric site. co-doping with mo can enhance the luminescent intensity and the optimal concentration was determined to be x = 0.4. combination of the first-principles calculations with the experimental spectroscopic measurements confirmed an indirect band gap character for the prepared phosphors and allowed for estimation of their band gap value. the obtained results show that the sr2znw1-xmoxo6 phosphors have considerable potential for the near ultraviolet excited white light emitting diodes. (c) 2016 elsevier b.v. all rights reserved.
WOS关键词RED-EMITTING PHOSPHOR ; RARE-EARTH IONS ; PHOTOLUMINESCENCE PROPERTIES ; UV EXCITATION ; CRYSTAL ; EU3+ ; LI+ ; EMISSION ; SPECTRA ; DIODES
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000382222300124
URI标识http://www.irgrid.ac.cn/handle/1471x/2376248
专题中国科学院大学
通讯作者Li, Li
作者单位1.Chongqing Univ Posts & Telecommun, Coll Sci, Chongqing 400065, Peoples R China
2.Polish Acad Sci, Inst Phys, Al Lotnikow 32-46, PL-02668 Warsaw, Poland
3.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing Key Lab New Energy Mat & Devices, Key Lab Renewable Energy,Inst Phys, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Univ Tartu, Inst Phys, Ravila 14C, EE-50411 Tartu, Estonia
6.Jan Dlugosz Univ, Inst Phys, Al Armii Krajowej 13-15, PL-42200 Czestochowa, Poland
推荐引用方式
GB/T 7714
Li, Li,Pan, Yu,Zhou, Xianju,et al. Luminescence enhancement in the sr2znw1-xmoxo6:eu3+,li+ phosphor for near ultraviolet based solid state lighting[J]. Journal of alloys and compounds,2016,685:917-926.
APA Li, Li.,Pan, Yu.,Zhou, Xianju.,Zhao, Chenglong.,Wang, Yongjie.,...&Brik, M. G..(2016).Luminescence enhancement in the sr2znw1-xmoxo6:eu3+,li+ phosphor for near ultraviolet based solid state lighting.Journal of alloys and compounds,685,917-926.
MLA Li, Li,et al."Luminescence enhancement in the sr2znw1-xmoxo6:eu3+,li+ phosphor for near ultraviolet based solid state lighting".Journal of alloys and compounds 685(2016):917-926.

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