Fabrication of gold nanoelectrodes based on nanolithography electrochemically through a conductive AFM tip  

作　　者：LI Tianfeng ZHANG Xingtang JIANG Xiaohong LI Yuncai DU Zuliang 

机构地区：[1]Key Laboratory for Special Function Materials, Henan University,Kaifeng 475001. China

出　　处：《Chinese Science Bulletin》2005年第22期2560-2564,共5页

基　　金：supported by the Prophase Project cf"973"Plan(Grant No.2002CCC02700);the National Natura1 Science Foundation of China(Grant Nos.20371015 and 90306010)

摘　　要：Gold nanoelectrodes were fabricated by ap- proach of combining surface self-assembly with nanolitho- graphy electrochemically through a conductive AFM tip. The controllable structure with width and distance in nanometer as a template was constructed by nanolithography patterning process, which was accomplished by a conductive AFM tip on certain highly ordered long-tail organosilane monolayers. Then through adsorption of Cd2+ and exposure of the Cd2+-loaded surface to gaseous H2S, CdS nanowires were generated in a template-controlled self-assembly process. Finally, metallic gold nanowires were conversed from CdS nanowires by treatment with the aqueous solution of HAuCl4 via a redox chemical process, which had good conductivity proved by C-AFM.Gold nanoelectrodes were fabricated by approach of combining surface self-assembly with nanolithography electrochemically through a conductive AFM tip. The controllahle structure with width and distance in nanometer as a template was constructed by nanolithography patterning process, which was accomplished by a conductive AFM tip on certain highly ordered long-tail organosilane monolayers. Then through adsorption of Cd^2＋ and exposure of the Cd^2＋-loaded surface to gaseous H2S, CdS nanowires were generated in a template-controlled self-assembly process. Finally, metallic gold nanowires were conversed from CdS nanowires by treatment with the aqueous solution of HAuCl4 via a redox chemical process, which had good conductivity proved by C-AFM.

关 键 词：OTS 自集合薄膜 纳米电极 传导性 电化学 

分 类 号：O646[理学—物理化学]