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Gold nanowires with high aspect ratio and morphological purity: Synthesis, characterization, and evaluation of parameters

Published online by Cambridge University Press:  03 January 2013

Elcin Dertli
Affiliation:
Micro and Nanotechnology Program, Middle East Technical University, 06800 Ankara, Turkey
Sahin Coskun
Affiliation:
Department of Metallurgical and Materials Engineering, Middle East Technical University, 06800 Ankara, Turkey
Emren Nalbant Esenturk*
Affiliation:
Micro and Nanotechnology Program, Middle East Technical University, Ankara, Turkey; and Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
*
a)Address all correspondence to this author. e-mail: emren@metu.edu.tr
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Abstract

In this study, gold (Au) nanowires were synthesized with a modified hydrothermal process, and high structural purity and control over Au nanowire diameter were achieved. Parametric study was performed to examine the effect of surfactant concentration, reaction time, and temperature on the quality of the synthesized products. The optimum conditions were determined for the synthesis with two different surfactant molecules, namely hexamethylenetetramine and ethylenediaminetetraacetic acid. Au nanowires synthesized under optimum conditions have high aspect ratio (diameters in the range of 50–110 nm and lengths in micrometers) with high structural purity and are potentially useful for applications such as surface-enhanced Raman scattering spectroscopy and transparent conducting electrodes for optoelectronic devices.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

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