Journal article
Metallorganic Chemical Vapor Deposition of ZnO Nanowires from Zinc Acetylacetonate and Oxygen
Journal of the Electrochemical Society, v 156(1), pp H52-H58
01 Jan 2009
Abstract
ZnO nanowires were grown by metallorganic chemical vapor deposition from zinc acetylacetonate hydrate and oxygen without using any seed particles or templates. Nanowires grew epitaxially on sapphire substrates to form dense arrays but with random orientation on F:SnO(2) and glass. Nanowire morphology was studied as a function of deposition conditions, including substrate temperature, zinc partial pressure, and growth duration. Water evolves from the initially hydrated precursor during the first 30 min of growth, resulting in deposition of a thin polycrystalline film. The grains of this film then act as nucleation sites for nanowire growth from the now-anhydrous precursor. After several hours of growth, the precursor decomposes to ZnO, resulting in nucleation of smaller secondary nanowires on the sides of the first nanowires. These branched structures with high surface area may have potential applications in dye-sensitized solar cells and sensors. Transmission electron microscopy shows that the nanowires are crystalline, and photoluminescence is nearly free of defect emissions.
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Details
- Title
- Metallorganic Chemical Vapor Deposition of ZnO Nanowires from Zinc Acetylacetonate and Oxygen
- Creators
- Jason B. Baxter - Drexel UniversityEray S. Aydil - University of Minnesota
- Publication Details
- Journal of the Electrochemical Society, v 156(1), pp H52-H58
- Publisher
- Electrochemical Soc Inc
- Number of pages
- 7
- Grant note
- DMR00-80034 / National Science Foundation; National Science Foundation (NSF) University of California Energy Institute's Energy Science and Technology; University of California System National Science Foundation Graduate Research Fellowship; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000261209800074
- Scopus ID
- 2-s2.0-56749166063
- Other Identifier
- 991019168551904721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Electrochemistry
- Materials Science, Coatings & Films