Controlled Assembly of 1,4-Phenylenedimethanethiol Molecular Nanostructures

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• 作者：Hadi M. Zareie ; Andrew M. McDonagh ; Jonathan Edgar ; Michael J. Ford ; Michael B. Cortie ; and Matthew R. Phillips
• 刊名：Chemistry of Materials
• 出版年：2006
• 出版时间：May 2, 2006
• 年：2006
• 卷：18
• 期：9
• 页码：2376 - 2380
• 全文大小：402K
• 年卷期：v.18,no.9(May 2, 2006)
• ISSN：1520-5002

文摘

We present here the first high-resolution scanning tunneling microscope images showing that 1,4-phenylenedimethanethiol forms mono- and multilayers on gold(111) substrates under particular solution-deposition conditions. The high-resolution images show that the deposition conditions strongly influencethe type of surface structure formed. The molecular structures were also probed using molecular-etchingtechniques and through deposition and imaging of gold nanoparticles. The current-voltage (I-V)characteristics of the multilayer structures are significantly different from those of monolayers. For thefirst time, scanning electron microscopy experiments were used to investigate the homogeneity of largersurface areas of the surface structures.