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Synthesis of perfect silver nanocubes by a simple polyol process

Published online by Cambridge University Press:  31 January 2011

Jiejun Zhu ,
Caixia Kan ,
Xiaoguang Zhu ,
Jian-guo Wan ,
Min Han ,
Yue Zhao ,
Baolin Wang  and
Guanghou Wang
Jiejun Zhu
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China; and Department of Applied Physics, Nanjing University of Technology, Nanjing 210009, People’s Republic of China
Caixia Kan
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China
Xiaoguang Zhu
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
Jian-guo Wan*
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China
Min Han
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China
Yue Zhao
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China
Baolin Wang
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China
Guanghou Wang
Affiliation:
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: wanjg@nju.edu.cn
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Abstract

In this work, we report on silver nanocubes with perfect shape prepared by a simple poly(vinyl pyrrolidone)-directed polyol synthesis process. The effects of poly(vinyl pyrrolidone)/AgNO3ratio Rand reaction temperature Ton the morphology and size of the products were investigated. Ag nanocubes with an average edge length of 230 nm were obtained successfully with sharp edges and corners under a precise synthesis condition of R= 1 and T= 150 °C. The optical properties of Ag nanocubes show an attractive plasma resonance red-shift with size in a wide spectra region. The growth mechanism of the Ag nanocubes is proposed to be thermodynamically and kinetically controlled.

Keywords

AgChemical synthesisOptical properties
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 6 , June 2007 , pp. 1479 - 1485
Copyright
Copyright © Materials Research Society2007

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