Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (04): 294-298.doi: 10.3866/PKU.WHXB20000402

• Communication • Previous Articles     Next Articles

Reorganization of Gold Nanoprticles in Self-Assembled Nanostructures

Liu Shan-Tang, Hu Rui-Sheng, Zhu Zi-Hua, Zhu Tao, Liu Zhong-Fan   

  1. Center for Nanoscale Science and Technology(CNST),College of Chemistry Molecular Engineering,Peking University,Beijing 100871
  • Received:1999-12-27 Revised:2000-01-24 Published:2000-04-15
  • Contact: Zhu Tao

Abstract:

Single crystal silicon substrate was modified with self-assembled monolayer of 3-aminopropyl-trimethylsilane by aqueous phase silanization. Colloidal gold nanoparticles (12.0±1.0 nm) were adsorbed on such an amino-terminated surface with a submonolayer coverage. Randomly distributed gold nanoparticles were reorganized into two-dimensional close-packed aggregates when treated with alkanthiol molecules. Large size two-dimensional domains or ring-like structures of gold nanoparticles can be induced by solvent flow and evaporation.

Key words: Gold nanoparticles, Self-assembly, Reorganization