摘要
电极–分子接触界面在单分子器件中扮演着至关重要的作用.通过对电极、分子的锚定基团以及电极与分子间作用方式进行设计和调控,可以有效控制电极–分子界面结构和性质,从而影响单分子器件的性能和功能.本文从单分子器件研究的常用技术手段出发,综述单分子器件中常见的电极–分子接触界面类型及构建方式,并进一步阐述机械力、电化学及电场等外场对分子–电极接触界面的调控作用.最后本文围绕单分子器件界面构建及调控的发展进行总结和展望.
The interface between molecules and electrodes plays a crucial role in determining charge transport properties of single-molecule electronic devices. The electrode–molecule interfacial properties can be manipulated by tuning the structures of anchor groups and electrodes. In this review, we first introduce the techniques employed for fabricating and characterizing single-molecule devices, and then describe the design principles of the anchor, the electrode and their interactions for forming electrode–molecule contact interface. Finally, we examine the recent progress of modulating the interfacial properties through external stimuli such as mechanical force, electrochemical potential and electrical field.
作者
宋旭伟
宋楷
臧亚萍
Xuwei Song;Kai Song;Yaping Zang(CAS Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《中国科学：化学》
CAS
CSCD
北大核心
2022年第2期181-193,共13页
SCIENTIA SINICA Chimica
基金
中科院B类先导科技专项培育项目(XDPB01)
国家自然科学基金(22073109)资助项目。
关键词
单分子电子器件
电极–分子界面
外场调控
单分子电导
single-molecule electronic devices
electrode–molecule interface
conductance modulation
single-molecule conductance
