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Open Access NANO EXPRESS

Indium Tin Oxide@Carbon Core–Shell Nanowire and Jagged Indium Tin Oxide Nanowire

Yong Wang*, Liqiang Lu and Fengdan Wu

Author Affiliations

Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, 200444, Shanghai, People’s Republic of China

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Nanoscale Research Letters 2010, 5:1682-1685  doi:10.1007/s11671-010-9695-x

Published: 17 July 2010

Abstract

This paper reports two new indium tin oxide (ITO)-based nanostructures, namely ITO@carbon core–shell nanowire and jagged ITO nanowire. The ITO@carbon core–shell nanowires (~50 nm in diameter, 1–5 μm in length,) were prepared by a chemical vapor deposition process from commercial ITO nanoparticles. A carbon overlayer (~5–10 in thickness) was observed around ITO nanowire core, which was in situ formed by the catalytic decomposition of acetylene gas. This carbon overlayer could be easily removed after calcination in air at an elevated temperature of 700°C, thus forming jagged ITO nanowires (~40–45 nm in diameter). The growth mechanisms of ITO@carbon core–shell nanowire and jagged ITO nanowire were also suggested.

Keywords:
Chemical vapor deposition; Core–shell; Indium tin oxide; Nanowire