科研之友
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摘要
An electrochemical method for fabrication of metal nanoparticles with controlled size and shape was developed. Ag ions are adsorbed on a conductive substrate, and a voltage is applied between the substrate and a tip of atomic force microscopy in contact mode or tapping mode for deposition of Ag nanoparticles. Although control of particle size is difficult in contact mode because of deterioration in cantilever elasticity, it is possible in tapping mode through regulating the applied voltage or voltage application time. The present method can also be applied to fabrication of Ag nanorods and Ag nanoparticle arrays with controlled size and spacing and deposition of Au nanoparticles.
- 出版日期2012-2-16
