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Electronic charge transport through ZnO nanoribbons
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
2014 (English)In: Journal of Physics and Chemistry of Solids, ISSN 0022-3697, E-ISSN 1879-2553, Vol. 75, no 11, 1223-1228 p.Article in journal (Refereed) Published
Abstract [en]

I-V characteristics of ZnO nanoribbons (NRs) have been investigated using density functional theory coupled to non-equilibrium Green's Function. The current through the NRs drops with the increasing NR width, leveling off to 1.66 and 0.42 mu A in zig-zag and arm-chair NRs respectively for widths similar to 20 angstrom at 3 V of electrical bias. The transconductance as well as the current flowing through the arm-chair NRs decays exponentially with NR width for both odd and even number of dimer lines traversed. The current through the zig-zag NRs falls off exponentially with NR width, being insensitive to the odd or even numbers of zig-zag lines appearing along the normal to the charge transport direction.

Place, publisher, year, edition, pages
2014. Vol. 75, no 11, 1223-1228 p.
Keyword [en]
Oxides, Nanostructures, Ab initio calculations, Electrical conductivity, Transport properties
National Category
Condensed Matter Physics Chemical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-232566DOI: 10.1016/j.jpcs.2014.06.009ISI: 000340984700007OAI: oai:DiVA.org:uu-232566DiVA: diva2:749649
Available from: 2014-09-24 Created: 2014-09-22 Last updated: 2017-12-05Bibliographically approved

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Ahuja, Rajeev

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