中国物理B ›› 2005, Vol. 14 ›› Issue (11): 2269-2275.doi: 10.1088/1009-1963/14/11/022

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Controlled growth of large-scale silver nanowires

肖从文, 杨海涛, 申承民, 李子安, 张怀若, 刘飞, 杨天中, 陈书堂, 高鸿钧   

  1. Nanoscale Physics & Devices Laboratory, Institute of Physics,Chinese Academy of Sciences, Beijing \rm 100080, China
  • 收稿日期:2005-05-17 修回日期:2005-08-11 出版日期:2005-11-20 发布日期:2005-11-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 90201036, 60125103, 60228005 and 90206028).

Controlled growth of large-scale silver nanowires

Xiao Cong-Wen (肖从文), Yang Hai-Tao (杨海涛), Shen Cheng-Min (申承民), Li Zi-An (李子安), Zhang Huai-Ruo (张怀若), Liu Fei (刘飞), Yang Tian-Zhong (杨天中), Chen Shu-Tang (陈书堂), Gao Hong-Jun (高鸿钧)   

  1. Nanoscale Physics & Devices Laboratory, Institute of Physics,Chinese Academy of Sciences, Beijing \rm 100080, China
  • Received:2005-05-17 Revised:2005-08-11 Online:2005-11-20 Published:2005-11-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 90201036, 60125103, 60228005 and 90206028).

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摘要： Large-scale silver nanowires with controlled aspect ratio were synthesized via reducing silver nitrate with 1, 2-propanediol in the presence of poly (vinyl pyrrolidone) (PVP). Scanning electron microscopy, transmission electron microscopy and x-ray powder diffraction were employed to characterize these silver nanowires. The diameter of the silver nanowires can be readily controlled in the range of 100 to 400 nm by varying the experimental conditions. X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy results show that there exists no chemical bond between the silver and the nitrogen atoms. The interaction between PVP and silver nanowires is mainly through the oxygen atom in the carbonyl group.

Abstract: Large-scale silver nanowires with controlled aspect ratio were synthesized via reducing silver nitrate with 1, 2-propanediol in the presence of poly (vinyl pyrrolidone) (PVP). Scanning electron microscopy, transmission electron microscopy and x-ray powder diffraction were employed to characterize these silver nanowires. The diameter of the silver nanowires can be readily controlled in the range of 100 to 400 nm by varying the experimental conditions. X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy results show that there exists no chemical bond between the silver and the nitrogen atoms. The interaction between PVP and silver nanowires is mainly through the oxygen atom in the carbonyl group.

Key words: silver nanowires, controlled growth, chemisorption

中图分类号:  (Chemical synthesis methods)

  • 81.16.Be
78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures) 78.30.Er (Solid metals and alloys ?) 79.60.Jv (Interfaces; heterostructures; nanostructures) 68.65.-k (Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties)