Electrical characterization of bismuth sulfide nanowire arrays by conductive atomic force microscopy

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Birjukovs, Pavels
Petkov, Nikolay
Xu, Ju
Svirksts, Janis
Boland, John J.
Holmes, Justin D.
Erts, Donats
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American Chemical Society, ACS
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A new method for determining the resistivity of templated Bi2S3 nanowires by conductive atomic force (C-AFM) microscopy is described in this paper. Unlike other vertical C-AFM approaches, in our method, resistance measurements were carried out along the lengths of the nanowires. Nanowires embedded within anodic alumina membranes were exposed for contact by etching away the alumina template to form an open array of parallel nanowires. From these measurements, the contact resistance between the gold electrodes and the C-AFM probe could be determined and subtracted to give the intrinsic resistivity of the nanowires. The resistivity of the nanowires determined in such a horizontal configuration was 10−100 times lower than the resistivity determined when the same nanowires were contacted in a vertical configuration.
Electric wire , Atomic force microscopy , Bismuth , Nanowires , AFM , Afm probes , Alumina templates , Anodic alumina membranes , Bismuth sulfide nanowires , Conductive atomic force microscopies , Conductive-atomic forces , Electrical characterizations , Gold electrodes , Intrinsic resistivities , Open arrays , Parallel nanowires , Resistance measurements , Templated , Cadmium compounds , Bismuth sulfide
Birjukovs, P., Petkov, N., Xu, J., Svirksts, J., Boland, J. J., Holmes, J. D. and Erts, D. (2008) 'Electrical Characterization of Bismuth Sulfide Nanowire Arrays by Conductive Atomic Force Microscopy', The Journal of Physical Chemistry C, 112(49), pp. 19680-19685. doi: 10.1021/jp805422k
© 2008 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/full/10.1021/jp805422k