University Chemistry ›› 2025, Vol. 40 ›› Issue (3): 291-301.doi: 10.12461/PKU.DXHX202406023

Special Issue:

• Survey of Chemistry • Previous Articles     Next Articles

Advances in the Application of Electrochemical Regulation in Investigating the Electron Transport Properties of Single-Molecule Junctions

Jingwen Wang1, Minghao Wu1, Xing Zuo1, Yaofeng Yuan1, Yahao Wang2, Xiaoshun Zhou2, Jianfeng Yan1   

  1. 1 Key Laboratory of Molecule Synthesis and Function Discovery, Institute of Chemistry, Fuzhou University, Fuzhou 350108, China;
    2 Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, Zhejiang Province, China
  • Received:2024-06-11 Accepted:2024-08-29 Published:2025-03-19
  • Contact: Jianfeng Yan E-mail:yanjianfeng@fzu.edu.cn

Abstract: Single-molecule electronics, a pivotal branch of nanotechnology, focuses on the electrical properties of individual molecules, providing a theoretical foundation and technical support for the development of ultra-compact, energy-efficient electronic devices. Achieving precise control over electron transport in single-molecule junctions poses a significant technical challenge in this field. Electrochemical regulation, characterized by its exceptional tunability and reversibility, has emerged as a promising area of research within single-molecule electronics. This review highlights the progress made in the application of electrochemical control strategies over the past decade, encompassing the modulation of electron transport energy levels, molecular valence states, bonding mechanisms between electrodes and molecules, as well as the control of ionic liquid double-layer gating. By analyzing specific case studies, the aim is to enhance students’ understanding of the forefront of single-molecule electronics and its critical importance in contemporary nanoelectronics.

Key words: Electrochemical regulation, Single-molecule electronics, Energy level, Molecular valence states, Bonding modes