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Metal Atomic Wires and Single Molecular Junction: Nanoconstruction by STM and Their Quantum Transport

Abstract

金属原子线和金属-分子-金属结(分子结)等异质结是纳/分子电子学中研究最广泛的基本单元,它们表现出特殊的量子输运性质,如何构建这些分子尺度的异质结、表征其电荷输运行为并且探究调控电导的因素,是该领域当前的重要研究内容。STM裂结法(Scanningtunnelingmicroscopebreakjunction,STMBJ)是目前研究金属原子线和分子结的成熟方法之一,不仅可以快速重复地构建异质结,得到大量的可用于统计分析的电导曲线,也可以对异质结进行I–V表征。本论文主要运用STMBJ技术,从构建金属原子线到金属-分子金属结,研究金属原子线的量子电导和一系列分子结的电荷输运行为;在此基础上引入...Atomic wire and metal/molecule/metal junctions (molecular junctions) are the basic units of molecular electronic. Such heterojunctions show special features of quantum transport. How to build those molecular heterojunctions and to characterize their charge transport and explore the influencing factors are the currently important research contents in the field of molecular electronics. The technolo...学位:理学博士院系专业:化学化工学院_物理化学学号:2052010015366

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