Supramolecular Rotor and Translator at Work: On-Surface Movement of Single Atoms

Ohmann, Robin; Meyer, Jörg; Nickel, Anja; Echeverría, Jorge; Grisolía, Maricarmen; Joachim, Christian; Moresco, Francesca; Cuniberti, Gianaurelio

doi:10.1021/acsnano.5b03131

Cited by 33 publications

(36 citation statements)

References 27 publications

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“…Car designs based on assemblies of simpler molecular units would be advantageous for their facile production. In addition to driving the nanocar itself, the loading and delivery of external atoms (gold adatoms) was realized . The work required to deliver a single gold atom from one adsorption site to the next site was estimated to be 8×10 −21 J, which corresponded to the mechanical motive power of the device, thus affording about 3×10 −21 W on calculation with an average excitation time.…”

Section: The Science Behind the Nanocar Racementioning

confidence: 99%

Nano Trek Beyond: Driving Nanocars/Molecular Machines at Interfaces

Ariga

Mori

Nakanishi

2018

Chemistry An Asian Journal

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In 2016, the Nobel Prize in Chemistry was awarded for pioneering work on molecular machines. Half a year later, in Toulouse, the first molecular car race, a "nanocar race", was held by using the tip of a scanning tunneling microscope as an electrical remote control. In this Focus Review, we discuss the current state-of-the-art in research on molecular machines at interfaces. In the first section, we briefly explain the science behind the nanocar race, followed by a selection of recent examples of controlling molecules on surfaces. Finally, motion synchronization and the functions of molecular machines at liquid interfaces are discussed. This new concept of molecular tuning at interfaces is also introduced as a method for the continuous modification and optimization of molecular structure for target functions.

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Section: The Science Behind the Nanocar Racementioning

confidence: 99%

Nano Trek Beyond: Driving Nanocars/Molecular Machines at Interfaces

Ariga

Mori

Nakanishi

2018

Chemistry An Asian Journal

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“…Single tip LT-UHV-STM images and inelastic tunneling current manipulation conditions of the windmill tetramers have been extensively studied [12,14]. Figure 5 shows a scheme of the on-surface synthesized windmill molecule-vehicle held together via hydrogen bonds, as well as an assembly on the track between the two sliders recorded with a given tip on the LT-UHV 4-STM and one calculated STM image.…”

Section: The Dresden Molecule-vehicle On the Race Trackmentioning

confidence: 99%

“…They can be considered as equipped with a quantum motor [4]. The design, the optimization of semi-classical and quantum motors, and especially the understanding of the physics of their energy feeding and efficiency is one of the scientific interests of organizing the nanoscale race [14].…”

Section: Introductionmentioning

confidence: 99%

Training for the 1st international nano-car race: the Dresden molecule-vehicle

Eisenhut

Durand

Moresco

et al. 2016

Eur. Phys. J. Appl. Phys.

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Abstract. The first international nano-car race will be held in Toulouse, France in spring 2017, with the participation of six international teams. The training session of the Dresden Team is reported using the Toulouse LT-UHV 4-STM reconfigured with four independent controllers in preparation for the race. During the training, the total Au(1 1 1) surface was prepared over the full gold substrate and a 90 nm long race track with two turns was defined according to the new nano-car race rules. The Dresden windmill molecule-vehicle was deposited in ultrahigh vacuum conditions, imaged, and manipulated by any one of the four tips on race tracks to reach a 5 nm per hour driving speed including the STM image time after a given driving bias voltage pulse. During the manipulation with one of the tips, it was possible to image with another tip in parallel. Strategies for a safe and fast driving was established by the Dresden team along the fcc rafter of the Au(1 1 1) surface together with the possibility to repair on the spot the destroyed molecule for example during the negotiation of a turn. Other teams will beneficiate from this experience to also improve their driving strategy.

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“…The movement of single molecules on a surface induced by tunneling electrons is presently in the focus of research, especially concerning the excitation mechanisms, 1 the possibility of performing work, 2 and the construction of molecular rotors and motors. [3][4][5] Furthermore, the miniaturization of mechanical components to the atomic limit opens new fundamental scientific questions connected to the way electric energy is converted into movement in molecules.…”

Section: Introductionmentioning

confidence: 99%