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Facile synthesis of single crystalline metallic RuO2 nanowires and electromigration-induced transport properties

Title
Facile synthesis of single crystalline metallic RuO2 nanowires and electromigration-induced transport properties
Authors
Lee Y.Ye B.-U.Yu H.K.Lee J.-L.Kim M.H.Baik J.M.
Ewha Authors
김명화
SCOPUS Author ID
김명화scopus
Issue Date
2011
Journal Title
Journal of Physical Chemistry C
ISSN
1932-7447JCR Link
Citation
vol. 115, no. 11, pp. 4611 - 4615
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We report a simple strategy to synthesize highly crystalline ruthenium dioxide (RuO2) nanowires by atmospheric pressure chemical vapor deposition in supercooled liquid nanodroplets without the use of catalyst particles. The nanowires are single crystals with no discernible amorphous layers or defects. The pretreatment of the substrate is found to be effective for the position controlled growth of the nanowires as small as 10 nm. The RuO2 nanowires have extremely low electrical resistivity of 62.5 ± 8.8 μΩ•cm and uniform electrical materials characteristics, regardless of size. By passing high current (>107 A/cm2) through the nanowires, very small nanogaps of less than 5 nm are produced, which can be explained by a heuristic model, in which electromigrative and surface diffusional effects are included. © 2011 American Chemical Society.
DOI
10.1021/jp200426s
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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