High-Performance Electrochemically Gated Single-Molecule Transistor Enabled by Interfacial Engineering

Molecular-scale transistors, particularly those with high performance, are critical for advancing nanoelectronics toward practical applications. However, developing high-performance single-molecule transistor materials remains a significant challenge. Here, we design and synthesize a series of diketopyrrolopyrrole (DPP)-based narrow bandgap molecular wires with tailored molecule-electrode coupling. The molecular wire DPP-C-SMe, featuring electronic decoupling at the molecule-electrode interface, exhibits remarkable electrochemical gated modulation (>200-fold) and a low subthreshold swing (105 mV dec–1) within a 1 V potential window─significantly surpassing its coupled counterpart and ranking among the…

• NN
  National Natural Science Foundation of China

  Awards: 52273176, 22405088, 22588101, 22575084
• EC
  East China University of Science and Technology
• SA
  Science and Technology Commission of Shanghai Municipality

  Award: 24DX1400200
• FR
  Fundamental Research Funds for the Central Universities