Preparations and specific properties of electroconductive films by electrodeposition at the interface between two liquid phases

两相界面电沉积导电薄膜的制备及其特性

• 批准号: 14350379
• 负责人: KANEKO Hiroyuki
• 金额: $ 9.47万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350379/
• 关键词: electrodeposition; interfacial growth; copper; cobalt; polypyrrole; zinc; thin film; growth morphology; 二液相界面電析法; 膜状成長; 枝状成長; 界面振動; 原子間力顕微鏡; 銅薄膜; 亜鉛薄膜; 電流振動; 単分子膜; ステアリン酸

Under specialized experimental conditions, thin electoroconductive films can be obtained by electodeposition at the two-liquid-phase interface. The purpose of this study is to establish the preparing method of electroconductive films by the electrolysis at the interface and to analyze the specific properties of the films.In 2002, we found that the interface vibrated when the film grew at the interface and this phenomenon resulted in the generation of growth ripples in the film. A copper film with a flat surface was obtained when an applied voltage was as low as possible.In 2003, we surveyed the experimental conditions for preparing one-directionally polypyrrole film along the interface and succeeded in preparing the film. Electric conductivity of the film was not homogeneous : Its conductivity in the growth direction is higher than that in the vertical direction. In addition, the relation between interfacial tension and interfacial growth was investigated : Interfacial tension decreased with the growth, showing that the concentration of the solute component decreases near the growth front.In 2004, the experimental conditions for preparing the film of cobalt were surveyed. The morphology of the cobalt film obtained looked like a peacock's feather. Electrodeposition of zinc was tried when an aqueous solution and an organic liquid heavier than aqueous solution were used as two liquid phases. In this case, an electrodeposit grew at the interface but filmy growth was favored when an aqueous solution and an organic liquid lighter than aqueous solution were used.From these results, we could establish the method for preparing conductive films and investigate specific properties of the films.

在专门的实验条件下，可以通过在两液相界面上的eletoDeposion获得薄的选举膜。这项研究的目的是通过界面上的电解来建立电导膜的制备方法，并分析膜的特定特性。在2002年，我们发现，当膜在界面上生长时，该界面振动在界面及其这种现象导致膜中生长腐烂的产生。当施加电压尽可能低时，获得了具有平坦表面的铜膜。在2003年，我们调查了沿界面沿界面制备一方向多吡咯膜的实验条件，并成功地准备了膜。膜的电导率不是均匀的：其在生长方向上的电导率高于垂直方向的电导率。此外，研究了界面张力与界面生长之间的关系：随着生长的生长，界面张力降低，表明溶质成分的浓度在生长方面附近降低。在2004年，对制备钴膜的实验条件进行了调查。获得的钴膜的形态看起来像孔雀的羽毛。当将水溶液和比水溶液更重的有机液体用作两个液相时，尝试了锌的电沉积。在这种情况下，在界面上生长了电沉积，但是当使用水溶液和比水溶液较轻的有机液体时，膜的生长受到了青睐。从这些结果中，我们可以建立制备导电膜并研究膜的特定特性的方法。

项目成果

Ultra thin Copper films grown at the interface between two immiscible liquids.

在两种不混溶液体之间的界面上生长的超薄铜膜。

• 发表时间: 2005
• 期刊: Electrochemical and solid-state letters 8(2)
• 作者: E.Tada;Y.Oishi;H.Kaneko
• 通讯作者: H.Kaneko

Ultra thin Copper films grown at th interface between two immiscible liquids.

在两种不混溶液体之间的界面上生长的超薄铜膜。

• 发表时间: 2005
• 期刊: Electrochemical and solid-state letters 8(2)
• 作者: E.Tada;Y.Oishi;H.Kaneko
• 通讯作者: H.Kaneko