项目名称: 电位诱导有机分子纳米结构的原位STM研究
项目编号: No.20873160
项目类型: 面上项目
立项/批准年度: 2009
项目学科: 金属学与金属工艺
项目作者: 潘革波
作者单位: 中国科学院苏州纳米技术与纳米仿生研究所
项目金额: 32万元
中文摘要: 随着纳米技术的迅速发展,在分子层次上进行纳米结构设计和构筑的重要性日益突出。本项目正是在这一背景下,利用溶液中的自组装技术,在固液界面上构筑了一系列有机分子的纳米结构;利用扫描隧道显微术和电化学方法,揭示了纳米结构中分子的取向和排列方式。在此基础上,利用扫描隧道显微镜,原位观察了纳米结构随电极电位的变化;重点研究了分子发生反应时,所伴随的电沉积、电聚合等过程,为有序纳米结构可控制备提供了依据。此外,利用扫描隧道谱尝试研究单个分子纳米结构的电学性质,为原理型分子器件研制奠定了基础。
中文关键词: 电化学;分子纳米结构;扫描隧道显微术;自组装
英文摘要: With the rapid development of nanotechnology, the importance of design and construction of nanostructures at the molecular level becomes more and more prominent. In this project, nanostructures of a series of organic molecules have been constructed at the solid-liquid interface by using solution-based self-assembly technique. The molecular orientaion and packing arrangement in the nanostructures have been revealed by using scanning tunneling microscope (STM) and electrochemical methods.On the basis of above results, the change of nanostructures with the applied electrode potential has been observed in situ by STM. In particular, the electrodeposition and electropolymerization processes,which occur in the reaction region of molecules have been investigated. The reulsts are useful for the controllable construction of ordered nanostructures. In addition, scanning tunneling spectroscope (STS) has been perfomed to reveal the electrical property of single molecular nanostructures, which provides basic information for fabricating prototype molecular devices.
英文关键词: electrochemistry;molecular nanostructure; scanning tunneling microscope; self-assembly