Developments in advanced manufacturing have promoted the miniaturization of semiconductor electronic devices to a near-atomic scale,which continuously follows the'top-down'construction method.However,huge challenges have been encountered with the exponentially increased cost and inevitably prominent quantum effects.Molecular electronics is a highly interdisciplinary subject that studies the quantum behavior of electrons tunneling in molecules.It aims to assemble electronic devices in a'bottom-up'manner on this scale through a single molecule,thereby shedding light on the future design of logic circuits with new operating principles.The core technologies in this field are based on the rapid development of precise fabrication at a molecular scale,regulation at a quantum scale,and related applications of the basic electronic component of the'electrode-molecule-electrode junction'.Therefore,the quantum charge transport properties of the molecule can be controlled to pave the way for the bottom-up construction of single-molecule devices.The review firstly focuses on the collection and classification of the construction methods for molecular junctions.Thereafter,various characterization and regulation methods for molecular junctions are discussed,followed by the properties based on tunneling theory at the quantum scale of the corresponding molecular electronic devices.Finally,a summary and perspective are given to discuss further challenges and opportunities for the future design of electronic devices.

Yi Zhao;Wenqing Liu;Jiaoyang Zhao;Yasi Wang;Jueting Zheng;Junyang Liu;Wenjing Hong;Zhong-Qun Tian

State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,People's Republic of China;Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM),Xiamen 361005,People's Republic of China

极端制造（英文）

[1]Yi Zhao;Wenqing Liu;Jiaoyang Zhao;Yasi Wang;Jueting Zheng;Junyang Liu;Wenjing Hong;Zhong-Qun Tian-.The fabrication,characterization and functionalization in molecular electronics)[J].极端制造（英文）,2022(02):50-93

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