Multilayer Formation of Copper Ions (Cu^<2+>) Deposited onto Self-Assembled Monolayers of Alkanedithiols on Au(111) Surfaces

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概要

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• Self-assembled monolayers (SAMs) of 1, 5-pentanedithiol and 1, 9-nonanedithiol on Au(111) surfaces were used to adsorb copper ions (Cu^<2+>) from an ethanolic solution of cupric chloride (CuCl_2) by chmical interaction of thiol groups and copper ions assembling multilayer structures. Ellipsometry, contact angle measurement and X-ray photoelectron spectroscopy (XPS) confirmed that the alkanedithiol molecules formed SAMs with only one-ended thiol groups attached to the gold surface, leaving the other-ended thiol groups free, which is supported by the molecular mechanics calculation. XPS and X-ray Auger electron spectroscopy (XAES) not only indicate that copper ions deposited onto SAMs from the solution by the chemical reaction of copper ions with ended free thiol groups of SAMs, but more importantly demonstrate that copper is present in the +1 oxidation state in the multilayer system. Atomic force microscopy (AFM) was used to observe SAMs and multilayer structures.

• 社団法人応用物理学会の論文
• 2000-07-15

著者

• Bai C

  Inst. Chemistry Chinese Acad. Sci. Beijing Chn

• Bai Chunli

  Institute For Materials Research (imr) Tohoku University:(present Address) Institute Of Chemistry Ch

• Fujita D

  National Inst. Materials Sci. Tsukuba Jpn

• Fujita D

  Fisheries & Fishing Port Division Toyama Prefectural Government

• NEJO Hitoshi

  National Institute for Materials Science

• FUJITA Daisuke

  National Institute for Materials Science

• Nejo Hitoshi

  National Research Institute For Metals

• DENG Wenli

  National Research Institute for Metals

• YANG Linjing

  Department of Chemistry, New York University

• Yang Linjing

  Department Of Chemistry New York University

• Fujita Daisuke

  National Institute For Material Science

• Fujita Daisuke

  Advanced Nano Characterization Center National Institute For Materials Science

• Fujita Daisuke

  Key Nanotechnologies Field National Institute For Materials Science

• Fujita Daisuke

  Nanomaterials Laboratory National Institute For Materials Science

• Fujita Daisuke

  Nanophysics Research Group Nanoinaterials Laboratory National Institute For Materials Science

• Fujita Daisuke

  National Research Institute For Metals

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