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Please use this identifier to cite or link to this item: https://doi.org/10.1088/0957-4484/16/1/018
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dc.titleLarge-scale synthesis and field emission properties of vertically oriented CuO nanowire films
dc.contributor.authorZhu, Y.W.
dc.contributor.authorYu, T.
dc.contributor.authorCheong, F.C.
dc.contributor.authorXu, X.J.
dc.contributor.authorLim, C.T.
dc.contributor.authorTan, V.B.C.
dc.contributor.authorThong, J.T.L.
dc.contributor.authorSow, C.H.
dc.date.accessioned2014-10-07T04:31:18Z
dc.date.available2014-10-07T04:31:18Z
dc.date.issued2005-01
dc.identifier.citationZhu, Y.W., Yu, T., Cheong, F.C., Xu, X.J., Lim, C.T., Tan, V.B.C., Thong, J.T.L., Sow, C.H. (2005-01). Large-scale synthesis and field emission properties of vertically oriented CuO nanowire films. Nanotechnology 16 (1) : 88-92. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/16/1/018
dc.identifier.issn09574484
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/82602
dc.description.abstractUsing a simple method of direct heating of bulk copper plates in air, oriented CuO nanowire films were synthesized on a large scale. The length and density of nanowires could be controlled by growth temperature and growth time. Field emission (FE) measurements of CuO nanowire films show that they have a low turn-on field of 3.5-4.5 μm -1 and a large current density of 0.45 mA cm -2 under an applied field of about 7 V μm -1. By comparing the FE properties of two types of samples with different average lengths and densities (30 μm, 10 8 cm -2 and 4 μm, 4 × 10 7 cm -2, respectively), we found that the large length-radius ratio of CuO nanowires effectively improved the local field, which was beneficial to field emission. Verified with finite element calculation, the work function of oriented CuO nanowire films was estimated to be 2.5-2.8 eV.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.contributor.departmentMECHANICAL ENGINEERING
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.description.doi10.1088/0957-4484/16/1/018
dc.description.sourcetitleNanotechnology
dc.description.volume16
dc.description.issue1
dc.description.page88-92
dc.description.codenNNOTE
dc.identifier.isiut000226763800019
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