Large Amplitude Conductance Gating in a Wired Redox Molecule

Davis, Jason J.; Peters, Ben; Xi, Wang; Appel, Jeroen; Kros, Alexander; Aartsma, Thijs J.; Stan, Razvan C.; Canters, Gerard W.

doi:10.1021/jz100375m

Cited by 16 publications

(14 citation statements)

References 39 publications

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“…(1)). A similar result was obtained by Davis et al, who studied the magnitude of the RMET resonance in SPM junctions with horse heart cytochrome c or a ferrocene derivative having a conjugated spacer unit between the redox-active center and the anchoring group [37]. An interesting, but so far not yet completely understood result was reported by Leary et al, who studied the ET in covalently bound molecular junctions containing redox-active viologen or pyrrolo-tetrathiafulvalene groups [38].…”

Section: Introductionsupporting

confidence: 76%

Structural aspects of redox-mediated electron tunneling

Rudnev

Pobelov

Wandlowski

2011

Journal of Electroanalytical Chemistry

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Section: Introductionsupporting

confidence: 76%

Structural aspects of redox-mediated electron tunneling

Rudnev

Pobelov

Wandlowski

2011

Journal of Electroanalytical Chemistry

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“…Scanning tunneling microscopy (STM), since its beginnings in the early 1980s, , has evolved into a powerful tool for probing and controlling single atoms and molecules on conductive surfaces. Aside from its original applications (subnanoscale visualization and physical manipulation at the atomic level), it has further opened the way for modern techniques and emerging technologies based on single-molecule electrically operated units, including molecular junctions and transistors, − current- and electric field-controlled molecular switches, − and nano-optoelectronic molecular devices. − …”

mentioning

confidence: 99%

Real-Time Atomistic Dynamics of Energy Flow in an STM Setup: Revealing the Mechanism of Current-Induced Molecular Emission

Jankowska

Prezhdo

2018

J. Phys. Chem. Lett.

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Detailed understanding of the current-induced fluorescence mechanism constitutes an exciting challenge as it can open the way to efficient coupling between an electric field and light at the nanoscale. At the same time, a number of published experimental studies give an unclear, contradictory picture of this phenomenon working principle. Here, for a system consisting of a silver tip and a porphyrin molecule, we perform for the first time fully atomistic, real-time nonadiabatic dynamics simulations to study the process of energy transfer and relaxation in an STM setup. We calculate time scales of all crucial processes and explain their atomic details. On this basis, we confirm and characterize the dual mechanism of the observed emission based on competing elastic and inelastic electron transfer between the metal tip and the molecule.

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“…This could lead to better performance when compared with previously studied gate-controlled switches. 36,37 Moreover, such conductance switching effect can be extended to the whole Franck−Condon blockade region (∼±0.1 V in the present junction, see Figure 4d) without affecting the performance of the device. Mechanically controlled binary conductance switching of a 4,4′-bipyridine molecule has been realized recently.…”

Section: ■ Results and Discussionmentioning

confidence: 67%

Isomer-Dependent Franck–Condon Blockade in Weakly Coupled Bipyridine Molecular Junctions

Tian

Luo

2014

J. Phys. Chem. C

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Franck−Condon blockade is an attractive functionality of molecular junctions, but its tunability is still a challenge that has not been fully addressed. We show here from first-principles calculations that the electron−vibration coupling strength of a weekly coupled bipyridine molecular junction can be largely tuned from weak to strong coupling regime through isomerization. Electron transport properties of four bipyridine isomers, namely 2,6′-bipyridine, 2,4′-bipyridine, 2,2′-bipyridine, and 4,4′-bipyridine, have been exclusively examined. A very strong Franck−Condon blockade is found to be associated with 2,2′-bipyridine and 4,4′-bipyridine molecules and should be observable experimentally. A gate-controlled conductance switch is proposed for a molecular junction with a 4,4′-bipyridine molecule. Our calculations have clearly demonstrated that bipyridine isomers are excellent candidates for the experimental study of vibration-mediated transport properties in a single molecule.

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Large Amplitude Conductance Gating in a Wired Redox Molecule

Cited by 16 publications

References 39 publications

Structural aspects of redox-mediated electron tunneling

Structural aspects of redox-mediated electron tunneling

Real-Time Atomistic Dynamics of Energy Flow in an STM Setup: Revealing the Mechanism of Current-Induced Molecular Emission

Isomer-Dependent Franck–Condon Blockade in Weakly Coupled Bipyridine Molecular Junctions

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