Morphology Control in Self-Assembled Monolayers Written by Dip Pen Nanolithography

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• 作者：Robert J. Barsotti ; Jr. ; Matthew S. O'Connell ; and Francesco Stellacci
• 刊名：Langmuir
• 出版年：2004
• 出版时间：June 8, 2004
• 年：2004
• 卷：20
• 期：12
• 页码：4795 - 4798
• 全文大小：374K
• 年卷期：v.20,no.12(June 8, 2004)
• ISSN：1520-5827

文摘

Here, we describe the effect of writing speed in dip pen nanolithography on the morphology (height anddensity) of self-assembled monolayers of alkanethiols on gold surfaces. The analysis of atomic force microscopyimages of written monolayers shows that molecules assemble according to a nucleation and growthmechanism. Slow writing speeds lead to dense monolayers that can be used either to direct the self-assembly of metal nanoparticles or as masks for selective etching of conductive gold nanowires.