Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (03): 202-206.doi: 10.3866/PKU.WHXB20000303

• ARTICLE • Previous Articles     Next Articles

Assembling Gold Nnoparticles on Ultrasmooth Silicon Surface

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

  1. Center for Nanoscale Science and Technology,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871
  • Received:1999-05-17 Revised:1999-07-23 Published:2000-03-15
  • Contact: Zhu Tao

Abstract:

Chemically-wet treated silicon substrate was modified with self-assembled monolayer of 3-aminopropyl-trimethylsilane by aqueous phase silanization, giving an ultrasmooth and homogenous surface terminated with amino groups. Colloidal gold nanoparticles (15.7±2.0 nm)were adsorbed on such a surface with a submonolayer coverage and a random particle distribution. Increases in local surface coverage and packing order were induced by capping the assembled gold nanoparticles with alkanthiol molecules in an enthanolic solution.

Key words: Gold nanoparticles, Silanization, Assembly