Growth of ZnO Nanowires Catalyzed by Size-Dependent Melting of Au Nanoparticles

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Growth of ZnO Nanowires Catalyzed by Size-Dependent Melting of Au Nanoparticles

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Title: Growth of ZnO Nanowires Catalyzed by Size-Dependent Melting of Au Nanoparticles
Author: Petersen, Eric W.; Likovich, Edward Michael; Russell, Kasey Joe; Narayanamurti, Venkatesh

Note: Order does not necessarily reflect citation order of authors.

Citation: Petersen, Eric W., Edward M. Likovich, Kasey J. Russell, and Venkatesh Narayanamurti. 2009. Growth of ZnO nanowires catalyzed by size-dependent melting of Au nanoparticles. Nanotechnology 20(40): 405603.
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Abstract: We present a general approach to growing ZnO nanowires on arbitrary, high melting point (above 970 °C) substrates using the vapor–liquid–solid (VLS) growth mechanism. Our approach utilizes the melting point reduction of sufficiently small (5 nm diameter) Au particles to provide a liquid catalyst without substrate interaction. Using this size-dependent melting effect, we demonstrate catalytic VLS growth of ZnO nanowires on both Ti and Mo foil substrates with aspect ratios in excess of 1000:1. Transmission electron microscopy shows the nanowires to be single-crystalline, and photoluminescence spectra show high-quality optical properties. We believe this growth technique to be widely applicable to a variety of substrates and material systems.
Published Version: doi:10.1088/0957-4484/20/40/405603
Other Sources: http://www.seas.harvard.edu/venky/pdffiles/ZnOsizemelting.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3606240

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  • FAS Scholarly Articles [7470]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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