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Synthesis and mechanism of template-free growth of silver nanowires via syringes

Published online by Cambridge University Press:  28 December 2015

Wen-Han Wu ,
Hung-Yi Chuang  and
Steve Lien-chung Hsu
Wen-Han Wu
Affiliation:
Department of Materials Science and Engineering, Center for Micro/Nano Science and Technology, National Cheng-Kung University, Tainan, Taiwan 701-01, Republic of China
Hung-Yi Chuang
Affiliation:
Department of Materials Science and Engineering, Center for Micro/Nano Science and Technology, National Cheng-Kung University, Tainan, Taiwan 701-01, Republic of China
Steve Lien-chung Hsu*
Affiliation:
Department of Materials Science and Engineering, Center for Micro/Nano Science and Technology, National Cheng-Kung University, Tainan, Taiwan 701-01, Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

In this study, silver nanowires (Ag NWs) were synthesized in a one-pot method from silver nitrate and poly(vinyl pyrrolidone) (PVP), and reduced by ethylene glycol without the presence of chloride ion. The addition of silver nitrate and PVP was controlled by syringes. The syringe rate, and the concentrations of silver nitrate, and PVP, were manipulated to obtain Ag NWs with different widths and lengths. We have observed the phenomena of coarsening and combination of silver nanorods during the growth of the Ag NWs. With these phenomena, we have developed a growth model of Ag NWs, and successfully synthesized Ag NWs with high aspect ratios via the developed model.

Keywords

silver nitratesilver nanowirestemplate-freepolyol process
Type
Article
Information
Journal of Materials Research , Volume 31 , Issue 1: Annual Issue: Early Career Scholars in Materials Science , 14 January 2016 , pp. 109 - 116
Copyright
Copyright © Materials Research Society 2015 

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