Work

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

Year: 2025

Type: review

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.

Source: Current Opinion in Electrochemistry

DOI: 10.1016/j.coelec.2025.101688

Authors: Jiayi Wu, Yuxuan Zhang, Maike Yang, Jie Bai, Wenjing Hong

Institution: Xiamen University

Language: English

Topic: Molecular Junctions and Nanostructures

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,630

Funders: Innovative Research Group Project of the National Natural Science Foundation of China, National Natural Science Foundation of China