Growth Processes and Control of Two-Dimensional Structure of Carboxylic Acid-Terminated Self-Assembled Monolayers on Au(111)
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概要
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The growth processes and solvent effects on the two-dimensional structure of self-assembled monolayers (SAMs) formed by 6-mercaptohexanoic acid (MHA) on Au(111) were examined by scanning tunneling microscopy (STM) and contact angle (CA) measurements. The STM study revealed for the first time that the striped phases of 6-mercaptohexanoic acid (MHA) on Au(111) are preferentially formed near the step edges of gold terraces in the initial stage of SAM growth. In addition, it was found that MHA SAMs prepared from a polar aprotic solvent form a more well-ordered structure and a better hydrophilic surface than those prepared from a polar protic solvent. From this study, we clearly demonstrated that the properties of solvents are very important factors in controlling the two-dimensional structure of carboxylic acid-terminated SAMs.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-02-15
著者
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Hara Masahiko
Department of Cardiology, Osaka Rosai Hospital
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KONNO Kaoru
Department of Electronic Chemistry, Tokyo Institute of Technology
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Noh Jaegeun
Advanced Nanomaterials Laboratory Department Of Chemistry Hanyang University
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Ito Eisuke
Local Spatio-temporal Function Frontier Research System The Institute Of Physical And Chemical Resar
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Noh Jaegeun
Advanced Nanomaterials Laboratory, Department of Chemistry, Hanyang University, 17 Haengdang-dong, Seoungdong-gu, Seoul 133-791, Korea
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Hara Masahiko
Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuta, Midoriku, Yokohama 226-8502, Japan
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Konno Kaoru
Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuta, Midoriku, Yokohama 226-8502, Japan
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Konno Kaoru
Department of Electronic Chemistry, Interdisciplinary Graduate School of Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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