高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (12): 1957.

• 研究快报 • 上一篇    下一篇

STM针尖诱导铜表面纳米刻蚀与沉积

谢兆雄, 毛秉伟, 汤儆   

  1. 厦门大学固体表面物理化学国家重点实验室, 化学系, 厦门 361005
  • 收稿日期:1999-06-15 出版日期:1999-12-24 发布日期:1999-12-24
  • 通讯作者: 谢兆雄,男,30岁,博士,讲师.
  • 作者简介:谢兆雄,男,30岁,博士,讲师.
  • 基金资助:

    国家自然科学基金(批准号:29603007);教育部留学回国人员基金资助课题

STM Tip Induced Local Etching and Deposition on Cu Surfaces

XIE Zhao-Xiong, MAO Bing-Wei, TANG Jing   

  1. State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemsitry, Xiamen University, Xiamen 361005, China
  • Received:1999-06-15 Online:1999-12-24 Published:1999-12-24

关键词: 扫描隧道显微镜, 纳米刻蚀, 纳米沉积,

Abstract: At cathodic potential of bulk copper deposition in dilute Cu2+solution, tip was found to be able to induce local dissolution of copper by applying a rather positive tip potential, although meanwhile the copper was still deposited on the surface far from the tip area. The more positive the tip potential or the electrode potentiaLIs, the faster induced dissolution rate is. At a rather negative tip potential, deposition of Cu was enhanced by the tip while in the case Cu was dissolved locally with a more positive tip potential. Amechanism based on overlap of double layers between tip and substrate was proposed.

Key words: STM, Nano-etching, Nanodeposition, Cu

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