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Electroluminescence from a n-ZnO nanorod/p-CuAlO2 heterojunction light-emitting diode

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Electroluminescence from a n-ZnO nanorod/p-CuAlO2 heterojunction light-emitting diode

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dc.contributor.author Ling, Bo
dc.contributor.author Sun, Xiaowei
dc.contributor.author Zhao, Jun Liang
dc.contributor.author Tan, Swee Tiam
dc.contributor.author Dong, Zhili
dc.contributor.author Yang, Yi
dc.contributor.author Yu, Hongyu
dc.contributor.author Qi, K. C.
dc.date.accessioned 2012-07-03T05:53:10Z
dc.date.available 2012-07-03T05:53:10Z
dc.date.copyright 2008
dc.date.issued 2012-07-03
dc.identifier.citation Ling, B., Sun, X., Zhao, J. L., Tan, S. T., Dong, Z. L., Yang, Y., et al. (2009). Electroluminescence from a n-ZnO nanorod/p-CuAlO2 heterojunction light-emitting diode. Physica E, 41(4), 635-639.
dc.identifier.uri http://hdl.handle.net/10220/8275
dc.description.abstract n-ZnO nanorod/p-CuAlO2 heterojunction light-emitting diodes have been fabricated on p+-Si substrates. The CuAlO2 thin film was deposited by dc-magnetron sputtering while the ZnO nanorods (NRs) were fabricated using the vapor-phase transport method. The current–voltage characteristics of the devices showed good rectifying behavior with a high forward-to-reverse current ratio of around 120 at ±7V. Strong ultraviolet electro-luminescence centered at ~390 nm and a broad green-band emission were observed from the diode at room-temperature. The p-CuAlO2 layer was found to facilitate hole injection from p+-Si into n-ZnO while confining the electrons at ZnO/CuAlO2 interface, thus effectively enhancing the recombination emission efficiency in ZnO NRs.
dc.format.extent 16 p.
dc.language.iso en
dc.relation.ispartofseries Physica E
dc.rights © 2008 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Physica E, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1016/j.physe.2008.10.017.
dc.subject DRNTU::Engineering::Materials.
dc.title Electroluminescence from a n-ZnO nanorod/p-CuAlO2 heterojunction light-emitting diode
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1016/j.physe.2008.10.017
dc.description.version Accepted version

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