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Giant enhancement of ultraviolet near-band-edge emission from a wide-bandgap oxide with dipole-forbidden bandgap transition
Zhou, H.; R. Deng; Y. F. Li; B. Yao; J. M. Qin; J. Song; Y. Q. Li; Z. H. Ding and L. Liu
2017
发表期刊Journal of Alloys and Compounds
卷号705
摘要We report giant enhancement of recovered ultraviolet near-band-edge emission from SnO2 thin films with dipole-forbidden bandgap transition via Ag-doping and surface plasmon coupling. It is found that a recovering near-band-edge emission in the range of 361-375 nm in a low-concentration Ag-doped SnO2 film, suggesting that dipole-forbidden transition rule of SnO2 is broken. First-principles electronic structure calculations indicate that the breaking of the dipole-forbidden transition rule is derived from the acceptor of Ag substituting Sn in SnO2. 30-fold enhancement of ultraviolet near-band-edge emission from the Ag-doped SnO2 film is observed by modifying film surface using Ag nanoparticles. The giant enhancement of ultraviolet emission is ascribed to surface plasmon coupling between Ag-doped SnO2 and Ag nanoparticles. Our results suggest that Ag doping and Ag nanoparticles surface modification in SnO2 films play important roles in recovering and enhancing ultraviolet emission of SnO2 with dipoleforbidden bandgap transition. (C) 2017 Elsevier B. V. All rights reserved.
收录类别sci ; ei
语种英语
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/59491
专题中科院长春光机所知识产出
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Zhou, H.,R. Deng,Y. F. Li,et al. Giant enhancement of ultraviolet near-band-edge emission from a wide-bandgap oxide with dipole-forbidden bandgap transition[J]. Journal of Alloys and Compounds,2017,705.
APA Zhou, H..,R. Deng.,Y. F. Li.,B. Yao.,J. M. Qin.,...&Z. H. Ding and L. Liu.(2017).Giant enhancement of ultraviolet near-band-edge emission from a wide-bandgap oxide with dipole-forbidden bandgap transition.Journal of Alloys and Compounds,705.
MLA Zhou, H.,et al."Giant enhancement of ultraviolet near-band-edge emission from a wide-bandgap oxide with dipole-forbidden bandgap transition".Journal of Alloys and Compounds 705(2017).
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