A Nanocar and Rotor in One Molecule

2023/05/11 by Kwan Ho Au‐Yeung, Au-Yeung, K. H., Sagar Sarkar +17 · 1 citation
Engineering · Physics and Astronomy · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Force Microscopy Techniques and Applications #Molecular Junctions and Nanostructures #Surface Chemistry and Catalysis

paper · pdf · doi:10.48550/arxiv.2305.06791

openalex publication_date 2023/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Depending on its adsorption conformation on the Au(111) surface, a zwitterionic single-molecule machine works in two different ways under bias voltage pulses. It is a unidirectional rotor while anchored on the surface. It is a fast-drivable molecule-vehicle (nanocar) while physisorbed. By tuning the surface coverage, the conformation of the molecule can be selected to be either rotor or nanocar. The inelastic tunneling excitation producing the movement is investigated in the same experimental conditions for both the unidirectional rotation of the rotor and the directed movement of the nanocar.

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