Nano Archive

Electrochemically grown rough-textured nanowires

Tyagi, Pawan and Postetter, David and Saragnese, Daniel and Papadakis, Stergios J. and Gracias, David H. (2010) Electrochemically grown rough-textured nanowires. Journal of Nanoparticle Research, 12 (3). pp. 1065-1072.

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Abstract

Nanowires with a rough surface texture show unusual electronic, optical, and chemical properties; however, there are only a few existing methods for producing these nanowires. Here, we describe two methods for growing both free standing and lithographically patterned gold (Au) nanowires with a rough surface texture. The first strategy is based on the deposition of nanowires from a silver (Ag)–Au plating solution mixture that precipitates an Ag–Au cyanide complex during electrodeposition at low current densities. This complex disperses in the plating solution, thereby altering the nanowire growth to yield a rough surface texture. These nanowires are mass produced in alumina membranes. The second strategy produces long and rough Au nanowires on lithographically patternable nickel edge templates with corrugations formed by partial etching. These rough nanowires can be easily arrayed and integrated with microscale devices.

Item Type:Article
ID Code:8435
Deposited By:Prof. Alexey Ivanov
Deposited On:05 Dec 2010 20:31
Last Modified:06 Dec 2010 11:26

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