Aluminum foil mediated noncatalytic growth of ZnO nanowire arrays on an indium tin oxide substrate

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Vertically grown ZnO nanowires are synthesized on an indium tin oxide (ITO) substrate via a vapor transport method. The arrays of ZnO nanowire are spontaneously produced from the vapor of a 1: 1 mixture of ZnO and Zn powders with no metal catalyst. The key to this synthetic process lies in covering the ITO substrate with an aluminum foil that has a small hole in order to maintain an optimum level of supersaturation. Transmission electron microscopy and X-ray diffraction confirm the single crystalline nature of the wurtzite ZnO nanowires. This is the first report of vertically grown single-crystalline ZnO nanowires on an ITO substrate by gas phase synthesis. Direct growth of vertical ZnO nanowires on a conducting and transparent ITO substrate would find useful applications in field emission displays and solar cells.
Publisher
AMER CHEMICAL SOC
Issue Date
2008-06
Language
English
Article Type
Article
Keywords

FIELD-EMISSION PROPERTIES; THERMAL-EVAPORATION; MECHANICAL-STRESS; TEMPERATURE; FILMS; NANORODS

Citation

JOURNAL OF PHYSICAL CHEMISTRY C, v.112, no.25, pp.9181 - 9185

ISSN
1932-7447
DOI
10.1021/jp800515y
URI
http://hdl.handle.net/10203/90001
Appears in Collection
CH-Journal Papers(저널논문)
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