【摘 要】
：
Molecular rectifier,as a basic function of molecular electronic devices,has attracted extensive attention for the opportunity in constructing sub-nanometer electronic devices.However,tunneling leakage current has a significant contribution as electronic d
【机 构】
：
State Key Laboratory of Physical Chemistry of Solid Surfaces,Collaborative Innovation Center of Chem
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Molecular rectifier,as a basic function of molecular electronic devices,has attracted extensive attention for the opportunity in constructing sub-nanometer electronic devices.However,tunneling leakage current has a significant contribution as electronic devices shrink in size,which leads to a challenge in fabricating molecular rectifiers at the sub-nanometer scale.Here,we experimentally demonstrate a sub-nanometer molecular rectifier based on the supramolecular junction assembled between water and 1,4-diazabicyclo[2.2.2]octane(DABCO)molecule.The charge transport through DABCO and corresponding supramole-cular junctions exhibits destructive σ-interference,ensuring a sharp conductance variation for transmission modulation.The supramolecular interaction between DABCO and water readily introduces the asymmetric electrode-molecule interaction,which combines with the destructive σ-interference to support the sub-nanometer rectification.
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