单分子尺度电子输运中的量子干涉效应研究进展  

Advances in the research on quantum interference effects in charge transport on a single-molecule scale

作　　者：宋沆 胡勇 李晓慧 赵世强 冯安妮 刘俊扬 杨扬 洪文晶 SONG Hang;HU Yong;LI Xiaohui;ZHAO Shiqiang;FENG Anni;LIU Junyang;YANG Yang;HONG Wenjing(State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China;Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province,Xiamen 361002,China;Pen-Tung Sah Institute of Micro-Nano Science and Technology,Xiamen University,Xiamen 361005,China)

机构地区：[1]厦门大学化学化工学院,固体表面物理化学国家重点实验室,福建厦门361005 [2]福建能源材料科学与技术创新实验室,福建厦门361002 [3]厦门大学萨本栋微米纳米科学技术研究院,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2020年第5期892-904,共13页Journal of Xiamen University：Natural Science

基　　金：国家重点研发计划(2017YFA0204902);国家自然科学基金(21673195,21722305)。

摘　　要：量子干涉是单分子尺度电子输运中独特的尺度效应之一,有望解决分子器件在纳米尺度的高效调控问题,在单分子晶体管、高热电效率材料等领域具有重要作用,其相关的实验研究已成为近10年分子电子学研究领域的重要前沿.基于单分子电子学相关表征技术,对分子量子干涉效应进行直接的观测和外场调控,对于深入理解单分子尺度电子输运中的独特量子现象,并以此设计基于新奇物理化学效应的新型单分子器件具有重要意义.本文系统总结了近10年单分子尺度电子输运量子干涉效应的相关实验研究进展,对单分子尺度电子输运的独特量子干涉效应的理论基础进行了简要介绍,并对基于量子干涉效应的器件制备进行了展望.In the single-molecule charge transport,the quantum interference effect offers a unique opportunity to design molecular devices with quantum tunneling mechanism.Experimental studies of quantum interference in single-molecule junctions has become a frontier in the field of molecular electronics in the past decade.With the state-of-art charge transport characterization technique,direct observation and external field control of the quantum interference effect provide platforms for understanding the unique quantum phenomena on the single-molecule scale,and also provide a new avenue towards the design of novel single-molecule devices based on novel physical and chemical effects.This review summarizes recent advances in the experimental studies on quantum interference effects,as well as relevant theoretical basis of unique quantum interference effects,and provides future perspectives on developing of quantum interference-based molecular devices.

关 键 词：量子干涉 分子电子学 电化学调控 单分子电导测量 单分子电输运 

分 类 号：O431.2[机械工程—光学工程]