Observation of quantum interference in single–molecule junctions via electrochemical gating

IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Electrochemistry Pub Date : 2025-06-01 Epub Date: 2025-03-14 DOI:10.1016/j.coelec.2025.101688
Jiayi Wu, Yuxuan Zhang, Maike Yang, Jie Bai, Wenjing Hong
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Abstract

Quantum interference effects arising from phase differences in coherent electron wavefunctions offer novel strategies for regulating electron transport of single molecules, and the experimental observation of quantum interference effects has persisted as a major research frontier in molecular electronics. Recent advances using electrochemical gating have achieved the experimental evidences of three fundamental quantum interference phenomena, including Breit-Wigner resonance, Mach-Zehnder interferometery and Fano resonance, at the room temperature, thereby completing the experimental verification of all known quantum interference effects at the single–molecule scale. This review summarizes the applications of electrochemical gating in electron coherent tunneling, discusses the experimental validation of quantum interference effects at the single–molecule scale, and prospects their potential applications in high-performance single-molecule transistor devices.
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通过电化学门控观察单分子结中的量子干涉
相干电子波函数相位差引起的量子干涉效应为调节单分子电子输运提供了新的策略,量子干涉效应的实验观察一直是分子电子学的一个重要研究前沿。利用电化学门控技术的最新进展,在室温下获得了Breit-Wigner共振、Mach-Zehnder干涉仪和Fano共振三种基本量子干涉现象的实验证据,从而在单分子尺度上完成了所有已知量子干涉效应的实验验证。本文综述了电化学门控在电子相干隧道中的应用,讨论了单分子尺度上量子干涉效应的实验验证,并展望了其在高性能单分子晶体管器件中的应用前景。
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来源期刊
Current Opinion in Electrochemistry
Current Opinion in Electrochemistry Chemistry-Analytical Chemistry
CiteScore
14.00
自引率
5.90%
发文量
272
审稿时长
73 days
期刊介绍: The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner: 1.The views of experts on current advances in electrochemistry in a clear and readable form. 2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications. In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle: • Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •
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