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Proceedings Paper

Surface-plasmon-mediated emission from glancing-angle-deposition-functionalized ZnO nanowires
Author(s): Daniel C. Mayo; Anthony T. Mayo; Akira Ueda; Zhengda Pan; H. Y. Xu; Y. C. Liu; Richard R. Mu
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Paper Abstract

Vertically oriented ZnO nanowires (NWs) are grown upon silicon substrates using a novel, modified vapor-solid method. Electron-beam evaporation is then used to functionalize the sides of the ZnO NWs with MgO:Ag via glancing angle deposition (GLAD). By varying the thickness of the deposited MgO insulating layer, it is possible to study the underlying energetic mechanisms responsible for the quenching and enhancement of ZnO photoluminescence centers. For the visible emission, strong quenching was observed to occur independently of the MgO thickness. In contrast, the band-edge emission displayed an enhancement factor of 19 as the thickness of the MgO spacer was increased.

Paper Details

Date Published: 15 October 2012
PDF: 5 pages
Proc. SPIE 8456, Nanophotonic Materials IX, 84560J (15 October 2012); doi: 10.1117/12.930347
Show Author Affiliations
Daniel C. Mayo, Fisk Univ. (United States)
Vanderbilt Univ. (United States)
Anthony T. Mayo, Fisk Univ. (United States)
Akira Ueda, Fisk Univ. (United States)
Zhengda Pan, Fisk Univ. (United States)
H. Y. Xu, Northeast Normal Univ. (China)
Y. C. Liu, Northeast Normal Univ. (China)
Richard R. Mu, Fisk Univ. (United States)

Published in SPIE Proceedings Vol. 8456:
Nanophotonic Materials IX
Stefano Cabrini; Taleb Mokari, Editor(s)

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