摘要
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.
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.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2000年第4期294-298,共5页
Acta Physico-Chimica Sinica
基金
国家自然科学基金资助项目!(29803002
69890222)
关键词
金
纳米粒子
组装结构
表面重组
Gold nanoparticles, Self-assembly, Reorganization
