journal article·2022-09-01Open access

An Au25-R single-molecule tidal diode induced by the asymmetrical coupling

Zewen Zuo, Weicheng Yan, Kangkang Zhang, Caigan Xi, Yuewen Mu, Zhao-Bo Hu, Minhao Zhang, Kuo-Juei Hu, You Song, Fengqi Song

AIP Advances· Volume 12· Issue 9

Abstract

As a basic electronic component, the diode has drawn much attention in single-molecule electronics. However, the single-molecule diode is limited to the conventional diode mode, switching to “on” with a forward voltage and to “off” whenever an opposite voltage is applied. We report on a paradigm for designing a single-molecule tidal diode, which enables gate-controlled reversible rectifying behavior. In the Au25-R single-molecule transistors constructed by us, we observed clear rectification and achieved an electrically controllable reversible diode effect. The backward rectification ratio reached the maximum value of 30 at a negative bias voltage of −30 mV, while the forward rectification ratio was slightly smaller. We used an asymmetrical coupling model and a Landauer resonant tunneling model to explain the reversible diode effect and its dependence on temperature. The integration of bidirectional tunable diodes in a single-molecule device creates an avenue of research and allows the discovery of a set of traffic rules for the electronic world in the future.
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Research context

OpenAlex topics: Molecular Junctions and Nanostructures · Advanced Memory and Neural Computing · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University 1 , Nanjing 210093, China

Atom Manufacturing Institute (AMI) 2 , Nanjing 211805, China

College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications 3 , Nanjing 210023, China

Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University 4 , Taiyuan 030006, China

State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University 5 , Nanjing 210023, China

Chaotic Matter Science Research Center, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology 6 , Ganzhou 341000, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Fundamental Research Funds for the Central Universities

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