Journal
NANO LETTERS
Volume 8, Issue 8, Pages 2299-2304Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl800994s
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Silicon oxide nanowires hold great promise for functional nanoscale electronics. Here, we investigate the oxidation of straight, massively parallel, metallic Si nanowires. We show that the oxidation process starts at the Si NW terminations and develops like a burning match. While the spectroscopic signatures on the virgin, metallic part, are unaltered we identify four new oxidation states on the oxidized part, which show a gap opening, thus revealing the formation of a transverse internal nanojunction.
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