scholarly journals Single-molecule junctions of multinuclear organometallic wires: long-range carrier transport brought about by metal–metal interaction

2021 ◽  
Author(s):  
Yuya Tanaka ◽  
Yuya Kato ◽  
Kaho Sugimoto ◽  
Reo Kawano ◽  
Tomofumi Tada ◽  
...  
Keyword(s):  
Long Range ◽  
Single Molecule ◽  
Carrier Transport ◽  
Molecular Wires ◽  
Metal Interaction ◽  
Metal Metal ◽  
Single Molecule Junctions ◽  
High Conductance

Multinuclear organometallic molecular wires having (diethynylthiophene)diyl-Ru(dppe)2 repeating units show high conductance with small attenuation factors. The strong Ru–Ru interaction is the key for the long-range carrier transport.

Efficient long‐range triplet exciton transport by metal‐metal interaction at room temperature

2021 ◽  
Author(s):  
Chi-Ming Che ◽  
Qingyun Wan ◽  
Dian Li ◽  
Jiading Zou ◽  
Tengfei Yan ◽  
...  
Keyword(s):  
Long Range ◽  
Room Temperature ◽  
Triplet Exciton ◽  
Metal Interaction ◽  
Exciton Transport ◽  
Metal Metal

Efficient long‐range triplet exciton transport by metal‐metal interaction at room temperature

2021 ◽  
Author(s):  
Chi-Ming Che ◽  
Qingyun Wan ◽  
Dian Li ◽  
Jiading Zou ◽  
Tengfei Yan ◽  
...  
Keyword(s):  
Long Range ◽  
Room Temperature ◽  
Triplet Exciton ◽  
Metal Interaction ◽  
Exciton Transport ◽  
Metal Metal

scholarly journals Gateway state-mediated, long-range tunnelling in molecular wires

Nanoscale ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 3060-3067 ◽  
Author(s):  
Sara Sangtarash ◽  
Andrea Vezzoli ◽  
Hatef Sadeghi ◽  
Nicolò Ferri ◽  
Harry M. O'Brien ◽  
...  
Keyword(s):  
Long Range ◽  
Single Molecule ◽  
Molecular Wires

Gateway states in Au/single-molecule/Au junctions profoundly attenuate the conductance decay with length for thiol-contacted alkyl-aromatic-alkyl systems.

Molecular Wires in Single-Molecule Junctions: Charge Transport and Vibrational Excitations

ChemPhysChem ◽  
2010 ◽  
Vol 11 (10) ◽  
pp. 2256-2260 ◽  
Author(s):  
Stefan Ballmann ◽  
Wolfgang Hieringer ◽  
Daniel Secker ◽  
Qinglin Zheng ◽  
John A. Gladysz ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Molecule ◽  
Molecular Wires ◽  
Single Molecule Junctions ◽  
Vibrational Excitations

Long-Range Charge Transport in Diazonium-Based Single-Molecule Junctions

Nano Letters ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 6899-6907 ◽  
Author(s):  
Xinlei Yao ◽  
Xiaonan Sun ◽  
Frédéric Lafolet ◽  
Jean-Christophe Lacroix
Keyword(s):  
Charge Transport ◽  
Long Range ◽  
Single Molecule ◽  
Single Molecule Junctions

Single-molecule conductance of dibenzopentalenes: antiaromaticity and quantum interference

2021 ◽  
Author(s):  
Maximilian Schmidt ◽  
Daniel Wassy ◽  
Mathias Hermann ◽  
M. Teresa González ◽  
Nicolás Agräit ◽  
...  
Keyword(s):  
Single Molecule ◽  
Quantum Interference ◽  
Single Molecule Junctions ◽  
High Conductance

Single molecule junctions of antiaromatic dibenzo[a,e]pentalene are studied. 5,10 connection gives high conductance, whereas 2,7 gives low conductance due to destructive quantum interference. Comparison with aromatic analogues is made.

Potential-Induced High-Conductance Transport Pathways through Single-Molecule Junctions

2019 ◽  
Vol 141 (25) ◽  
pp. 10109-10116 ◽  
Author(s):  
Parisa Yasini ◽  
Sepideh Afsari ◽  
Haowei Peng ◽  
Piret Pikma ◽  
John P. Perdew ◽  
...  
Keyword(s):  
Single Molecule ◽  
Transport Pathways ◽  
Single Molecule Junctions ◽  
High Conductance

Enhanced charge transport via d(δ)–p(π) conjugation in Mo2-integrated single-molecule junctions

Nanoscale ◽  
2020 ◽  
Vol 12 (18) ◽  
pp. 10320-10327
Author(s):  
Miao Meng ◽  
Zheng Tang ◽  
Suman Mallick ◽  
Ming Hui Luo ◽  
Zhibing Tan ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Charge Transport ◽  
Transport Properties ◽  
Single Molecule ◽  
Molecular Wires ◽  
Single Molecule Junctions

We reported the charge transport properties of Mo2-integrated, rod-like molecules in single-molecule junctions. This study opens a door to the development of d(δ)–p(π) conjugated molecular wires with enhanced electrical conductivity.

Mechanically-Tunable Quantum Interference in Ferrocene-Based Single-Molecule Junctions

2020 ◽  
Author(s):  
María Camarasa-Gómez ◽  
Daniel Hernangómez-Pérez ◽  
Michael S. Inkpen ◽  
Giacomo Lovat ◽  
E-Dean Fung ◽  
...  
Keyword(s):  
Single Molecule ◽  
Quantum Interference ◽  
Degrees Of Freedom ◽  
Building Blocks ◽  
Ferrocene Derivative ◽  
Single Molecule Junctions ◽  
Molecule Junction ◽  
Single Molecule Junction ◽  
The Impact ◽  
D Orbitals

Ferrocenes are ubiquitous organometallic building blocks that comprise a Fe atom sandwiched between two cyclopentadienyl (Cp) rings that rotate freely at room temperature. Of widespread interest in fundamental studies and real-world applications, they have also attracted<br>some interest as functional elements of molecular-scale devices. Here we investigate the impact of<br>the configurational degrees of freedom of a ferrocene derivative on its single-molecule junction<br>conductance. Measurements indicate that the conductance of the ferrocene derivative, which is<br>suppressed by two orders of magnitude as compared to a fully conjugated analog, can be modulated<br>by altering the junction configuration. Ab initio transport calculations show that the low conductance is a consequence of destructive quantum interference effects that arise from the hybridization of metal-based d-orbitals and the ligand-based π-system. By rotating the Cp rings, the hybridization, and thus the quantum interference, can be mechanically controlled, resulting in a conductance modulation that is seen experimentally.<br>

Charge Transfer Complexation Boosts Molecular Conductance Through Fermi Level Pinning

2018 ◽  
Author(s):  
Kun Wang ◽  
Andrea Vezzoli ◽  
Iain Grace ◽  
Maeve McLaughlin ◽  
Richard Nichols ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Single Molecule ◽  
Quantum Interference ◽  
Transmission Function ◽  
Scanning Tunneling ◽  
Charge Transfer Complexes ◽  
Tunneling Microscopy ◽  
Quantum Interference Effect ◽  
Single Molecule Junctions ◽  
Charge Transfer Complexation

We have used scanning tunneling microscopy to create and study single molecule junctions with thioether-terminated oligothiophene molecules. We find that the conductance of these junctions increases upon formation of charge transfer complexes of the molecules with tetracyanoethene, and that the extent of the conductance increase is greater the longer is the oligothiophene, i.e. the lower is the conductance of the uncomplexed molecule in the junction. We use non-equilibrium Green's function transport calculations to explore the reasons for this theoretically, and find that new resonances appear in the transmission function, pinned close to the Fermi energy of the contacts, as a consequence of the charge transfer interaction. This is an example of a room temperature quantum interference effect, which in this case boosts junction conductance in contrast to earlier observations of QI that result in diminished conductance.<br>

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