Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.200700038
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dc.titleCO3O4 nanostructures with different morphologies and their field-emission properties
dc.contributor.authorVarghese, B.
dc.contributor.authorHoong, T.C.
dc.contributor.authorYanwu, Z.
dc.contributor.authorReddy, M.V.
dc.contributor.authorChowdari, B.V.R.
dc.contributor.authorWee, A.T.S.
dc.contributor.authorVincent, T.B.C.
dc.contributor.authorLim, C.T.
dc.contributor.authorSow, C.-H.
dc.date.accessioned2014-10-07T09:01:46Z
dc.date.available2014-10-07T09:01:46Z
dc.date.issued2007-08-13
dc.identifier.citationVarghese, B., Hoong, T.C., Yanwu, Z., Reddy, M.V., Chowdari, B.V.R., Wee, A.T.S., Vincent, T.B.C., Lim, C.T., Sow, C.-H. (2007-08-13). CO3O4 nanostructures with different morphologies and their field-emission properties. Advanced Functional Materials 17 (12) : 1932-1939. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.200700038
dc.identifier.issn1616301X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/84913
dc.description.abstractWe report an efficient method to synthesize vertically aligned CO 3O4 nanostructures on the surface of cobalt foils. This synthesis is accomplished by simply heating the cobalt foils in the presence of oxygen gas. The resultant morphologies of the nanostructures can be tailored to be either one-dimensional nanowires or two-dimensional nanowalls by controlling the reactivity and the diffusion rate of the oxygen species during the growth process. A possible growth mechanism governing the formation of such nanostructures is discussed. The field-emission properties of the as-synthesized nanostructures are investigated in detail. The turn-on field was determined to be 6.4 and 7.7 V μm-1 for nanowires and nanowalls, respectively. The nanowire samples show superior field-emission characteristics with a lower turn-on field and higher current density because of their sharp tip geometry and high aspect ratio. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/adfm.200700038
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.contributor.departmentMECHANICAL ENGINEERING
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.contributor.departmentSINGAPORE-MIT ALLIANCE
dc.description.doi10.1002/adfm.200700038
dc.description.sourcetitleAdvanced Functional Materials
dc.description.volume17
dc.description.issue12
dc.description.page1932-1939
dc.description.codenAFMDC
dc.identifier.isiut000248920000009
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