| Fabrication of gold nanoelectrodes based on nanolithography electrochemically through a conductive AFM tip |
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| 作者姓名： | LI Tianfeng ZHANG Xingtang JIANG Xiaohong LI Yuncai DU Zuliang |
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| 作者单位： | Key Laboratory for Special Function Materials, Henan University,Kaifeng 475001. China |
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| 基金项目： | Acknowledgements This work was supported by the Prophase Project of “973” Plan （Grant No. 2002CCC02700） and the National Natural Science Foundation of China （Grant Nos. 20371015 and 90306010）. |
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| 摘 要： | 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.
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| 关 键 词： | OTS 自集合薄膜 纳米电极 传导性 电化学 |
| 收稿时间： | 2005-03-21 |
| 修稿时间： | 2005-03-212005-04-27 |
Fabrication of gold nanoelectrodes based on nanolithography electrochemically through a conductive AFM tip |
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| LI Tianfeng ZHANG Xingtang JIANG Xiaohong LI Yuncai DU Zuliang.Fabrication of gold nanoelectrodes based on nanolithography electrochemically through a conductive AFM tip[J].Chinese Science Bulletin,2005,50(22):2560-2564. |
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| Authors: | Tianfeng Li Xingtang Zhang Xiaohong Jiang Yuncai Li Zuliang Du |
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| Institution: | LI Tianfeng, ZHANG Xingtang, JIANG Xiaohong, LI Yuncai & DU Zuliang Key Laboratory for Special Function Materials, Henan University, Kaifeng 475001, China |
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| Abstract: | 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. |
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| Keywords: | OTS self-assembly film electrochemical oxidation conductive AFM gold nanoelectrode |
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