Jared Burdick et al 2009 Nanotechnology 20 065306 doi:10.1088/0957-4484/20/6/065306
Jared Burdick1, Eric Alonas1, Huang-Chiao Huang2, Kaushal Rege2,4 and Joseph Wang3,4
Show affiliationsA cost-effective, high-throughput method for generating gold nanowires and/or nanorods based on a multisegment template electrodeposition approach is described. Using this method, multiple nanowires/nanorods can be generated from a single pore of alumina template membranes by alternately depositing segments of desirable (e.g., gold) and non-desirable metals (e.g., silver), followed by dissolution of the template and the non-desirable metal. Critical cost analysis indicates substantial savings in material requirements, processing times, and processing costs compared to the commonly used single-segment method. In addition to solid gold nanowires/nanorods, high yields of porous gold nanowires/nanorods are obtained by depositing alternate segments of gold–silver alloy and silver from the same gold–silver plating solution followed by selective dissolution of the silver from both segments. It is anticipated that this high-throughput method for synthesizing solid and porous gold nanowires and nanorods will accelerate their use in sensing, electronic, and biomedical applications.
81.16.-c Methods of nanofabrication and processing
81.07.-b Nanoscale materials and structures: fabrication and characterization
Issue 6 (11 February 2009)
Received 15 July 2008, in final form 21 October 2008
Published 14 January 2009
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