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Enhanced photoluminescence of ZnO/Er2O3 core-shell structure nanorods synthesized by pulsed laser deposition

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Enhanced photoluminescence of ZnO/Er2O3 core-shell structure nanorods synthesized by pulsed laser deposition

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dc.contributor.author Li, Shaozhou
dc.contributor.author Gan, Chee Lip
dc.contributor.author Cai, Hui
dc.contributor.author Yuan, C. L.
dc.contributor.author Guo, Jun
dc.contributor.author Lee, Pooi See
dc.contributor.author Ma, Jan
dc.date.accessioned 2012-05-17T02:45:58Z
dc.date.available 2012-05-17T02:45:58Z
dc.date.copyright 2007
dc.date.issued 2012-05-17
dc.identifier.citation Li, S. Z., Gan, C. L., Cai, H., Yuan, C. L., Guo, J., Lee, P. S., et al. (2007). Enhanced photoluminescence of ZnO/Er2O3 core-shell structure nanorods synthesized by pulsed laser deposition. Applied Physics Letters, 90(26).
dc.identifier.uri http://hdl.handle.net/10220/8061
dc.description.abstract A narrow size distribution of ZnO nanorod array has been synthesized on silicon substrate by pulsed laser deposition (PLD) in argon ambient. ZnO/Er2O3 core-shell nanostructures were then formed through PLD of a thin Er2O3 layer onto the fabricated ZnO nanorod surface. Transmission electron microscopy analysis shows that both the ZnO core and Er2O3 shell are polycrystalline. Photoluminescence measurement was carried out to characterize the optical properties of the core-shell nanostructures. The band diagram of the core-shell structure shows that a type-II nanostructure may have formed, which explains the ultraviolet emission enhancement of the core-shell structure over pure ZnO nanorods.
dc.format.extent 3 p.
dc.language.iso en
dc.relation.ispartofseries Applied physics letters
dc.rights © 2007 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official URL: http://dx.doi.org/10.1063/1.2752020. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
dc.subject DRNTU::Engineering::Materials
dc.title Enhanced photoluminescence of ZnO/Er2O3 core-shell structure nanorods synthesized by pulsed laser deposition
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1063/1.2752020
dc.description.version Published version

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