Local Surface Charges Direct the Deposition of Carbon Nanotubes and Fullerenes into Nanoscale Patterns

详细信息    查看全文

• 作者：Livia Seemann ; Andreas Stemmer ; Nicola Naujoks
• 刊名：Nano Letters
• 出版年：2007
• 出版时间：October 2007
• 年：2007
• 卷：7
• 期：10
• 页码：3007 - 3012
• 全文大小：533K
• 年卷期：v.7,no.10(October 2007)
• ISSN：1530-6992

文摘

This article reports on the directed deposition of carbon nanotubes (CNTs) and fullerenes onto solid surfaces using local electrostatic fields.Arbitrary patterns of local surface charges are created by charge writing with an atomic force microscope. During the subsequent developmentof the sample in an aqueous suspension containing surfactant-stabilized CNTs or fullerenes, Coulomb attraction guides the positioning andalignment of these particles onto the charge patterns. The surface potential of the charge patterns provides a direct control over the particleattachment. CNTs and fullerenes precisely reproduce the charge patterns, yielding structures with a lateral resolution down to the particlediameter.