IHEP OpenIR
Tuning oxygen vacancy photoluminescence in monoclinic Y2WO6 by selectively occupying yttrium sites using lanthanum
Ding, BF; Han, C; Zheng LR(郑黎荣); Zheng, LR; Zhang, JY; Wang, RM; Tang, ZL
2015
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Pages:9443
SubtypeArticle
AbstractThe effect of isovalent lanthanum (La) doping on the monoclinic Y2WO6 photoluminescence was studied. Introducing the non-activated La3+ into Y2WO6 brings new excitation bands from violet to visible regions and strong near-infrared emission, while the bands position and intensity depend on the doping concentration. It is interesting to find that doping La3+ into Y2WO6 promotes the oxygen vacancy formation according to the first-principle calculation, Raman spectrum, and synchrotron radiation analysis. Through the Rietveld refinement and X-ray photoelectron spectroscopy results, La3+ is found to mainly occupy the Y2 (2f) site in low-concentration doped samples. With increasing doping concentration, the La3+ occupation number at the Y3 (4g) site increases faster than those at the Y1 (2e) and Y2 (2f) sites. When La3+ occupies different Y sites, the localized energy states caused by the oxygen vacancy pair change their position in the forbidden band, inducing the variation of the excitation and emission bands. This research proposes a feasible method to tune the oxygen vacancy emission, eliminating the challenge of precisely controlling the calcination atmosphere.
Subject AreaScience & Technology - Other Topics
DOI10.1038/srep09443
Indexed BySCI ; ADS
Language英语
WOS Research AreaMultidisciplinary Sciences
WOS SubjectScience & Technology - Other Topics
WOS IDWOS:000351937700001
ADS Bibcode2015NatSR...5E9443D
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015NatSR...5E9443D
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015NatSR...5E9443D/citations
Citation statistics
Cited Times:11 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228365
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Ding, BF,Han, C,Zheng LR,et al. Tuning oxygen vacancy photoluminescence in monoclinic Y2WO6 by selectively occupying yttrium sites using lanthanum[J]. SCIENTIFIC REPORTS,2015,5:9443.
APA Ding, BF.,Han, C.,郑黎荣.,Zheng, LR.,Zhang, JY.,...&Tang, ZL.(2015).Tuning oxygen vacancy photoluminescence in monoclinic Y2WO6 by selectively occupying yttrium sites using lanthanum.SCIENTIFIC REPORTS,5,9443.
MLA Ding, BF,et al."Tuning oxygen vacancy photoluminescence in monoclinic Y2WO6 by selectively occupying yttrium sites using lanthanum".SCIENTIFIC REPORTS 5(2015):9443.
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