Journal of Materials Research

Articles

Synthesis of perfect silver nanocubes by a simple polyol process

Jiejun Zhua1, Caixia Kana2, Xiaoguang Zhua3, Jian-guo Wana4 c1, Min Hana4, Yue Zhaoa4, Baolin Wanga4 and Guanghou Wanga4

a1 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

a2 National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China

a3 Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China

a4 National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China

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.

(Received September 14 2006)

(Accepted November 14 2006)

Key Words:

  • Ag;
  • Chemical synthesis;
  • Optical properties

Correspondence:

c1 Address all correspondence to this author. e-mail: wanjg@nju.edu.cn

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