Development of Electrochemical Polymerization of Single-Molecular Wires

单分子线电化学聚合研究进展

• 批准号: 16550123
• 负责人: SAKAGUCHI Hiroshi
• 金额: $ 2.37万
• 依托单位: RESEARCH INSTITUTE OF ELECTRONICS SHIZUOKA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16550123/
• 关键词: Electrochemistry; Surface science; Molecular wires; 分子電線; 単一分子; 自己組織化

Key to realize the high performance of organic devices using conducting polymers is how to fabricate a highly organized structure on surface at a single molecular scale. Here we have demonstrated a new single-molecular processing-technique using electrochemistry, called 'electrochemical epitaxial polymerization'. This technique is based on a step-by-step electropolymerization of monomer along the lattice of iodine-covered Au(111) surface to form the single conjugated-polymer wires by applying voltage-pulses into monomer-electrolyte solution. By using this technique, we have succeeded in building a uniform high-density array of single conducting-polymer wires on electrode as long as 200 nm, with controlling wire's density, length, direction and shape. This first observation will open the door to a mass-production of single molecular-scale devices using conducting polymers.

实现导电聚合物有机器件高性能化的关键是如何在单分子尺度上在表面构建高度有序的结构。在这里，我们展示了一种新的单分子加工技术，使用电化学，称为“电化学外延聚合”。该技术是基于在单体电解质溶液中施加电压脉冲，使单体沿着碘覆盖的Au（111）表面的晶格逐步电聚合，形成单根共轭聚合物线。利用这种技术，我们成功地在电极上构建了一个长度为200 nm的均匀高密度的单根导电聚合物线阵列，并控制了线的密度、长度、方向和形状。这第一个观察结果将打开大门，大规模生产的单分子规模的设备使用导电聚合物。

项目成果

Electromechanical an conductance switching properties of single oligothiophene molecules

单个低聚噻吩分子的机电和电导切换特性

• 发表时间: 2005
• 期刊: Nano Letters 5(7)
• 作者: B.Q.Xu;et al.
• 通讯作者: et al.

Electrochemical epitaxial polymerization of single-molecular wires

• DOI: 10.1038/nmat1176
• 发表时间: 2004-08-01
• 期刊: NATURE MATERIALS
• 影响因子: 41.2
• 作者: Sakaguchi, H;Matsumura, H;Gong, H
• 通讯作者: Gong, H

Direct visualization of the formation of single-molecule conjugated copolymers

• DOI: 10.1126/science.1117990
• 发表时间: 2005-11-11
• 期刊: SCIENCE
• 影响因子: 56.9
• 作者: Sakaguchi, H;Matsumura, H;Abouelwafa, AM
• 通讯作者: Abouelwafa, AM

Direct visualization o the formation of single-molecule conjugated copolymers

单分子共轭共聚物形成的直接可视化

• 发表时间: 2005
• 期刊: Science 310
• 作者: H.Sakaguchi;et al.
• 通讯作者: et al.

Photoluminesscence Studies of Oligothiophene Self-Assembled Monolavers at Low Excitation Energy

低激发能下低聚噻吩自组装单体的光致发光研究

• 发表时间: 2004
• 期刊: Journal of Chemical Physics 120
• 作者: E.Mishina;et al.
• 通讯作者: et al.