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|Title:||Nb2O5 nanowires as efficient electron field emitters||Authors:||Varghese, B.
|Issue Date:||10-Jul-2008||Citation:||Varghese, B., Haur, S.C., Lim, C.-T. (2008-07-10). Nb2O5 nanowires as efficient electron field emitters. Journal of Physical Chemistry C 112 (27) : 10008-10012. ScholarBank@NUS Repository. https://doi.org/10.1021/jp800611m||Abstract:||We report a catalyst free method to synthesize single crystal quality Nb2O5 nanowire arrays. Vertically oriented Nb 2O5 nanowires directly on Nb foils were synthesized by a thermal oxidation method. The electron field emission (FE) properties of the as-synthesized Nb2O5 nanowires were investigated in detail. Our results showed that the Nb2O5 nanowires are excellent FE emitters with fairly low turn on and threshold field. A remarkably high current density of ∼4 mA/cm2 was achieved at an applied field of 11 V/μm. At moderate applied fields, a continuous and uniform electron emission can be acquired from the Nb2O5 nanowire emitters for a total testing time of 10 h without any noticeable diminution. © 2008 American Chemical Society.||Source Title:||Journal of Physical Chemistry C||URI:||http://scholarbank.nus.edu.sg/handle/10635/85474||ISSN:||19327447||DOI:||10.1021/jp800611m|
|Appears in Collections:||Staff Publications|
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