Experimental investigation of quantum interference in charge transport through molecular architectures

2019 ◽  
Vol 7 (41) ◽  
pp. 12790-12808 ◽  
Author(s):  
Xiaohui Li ◽  
Zhibing Tan ◽  
Xiaojuan Huang ◽  
Jie Bai ◽  
Junyang Liu ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Charge Transport ◽  
Single Molecule ◽  
Quantum Interference ◽  
Molecular Architectures

We summarized the experimental investigation of quantum interference in charge transport through various molecular architectures at single-molecule scale.

Multicenter‐Bond‐Based Quantum Interference in Charge Transport Through Single‐Molecule Carborane Junctions

2019 ◽  
Vol 58 (31) ◽  
pp. 10601-10605 ◽  
Author(s):  
Chun Tang ◽  
Lijue Chen ◽  
Longyi Zhang ◽  
Zhixin Chen ◽  
Guopeng Li ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Molecule ◽  
Quantum Interference

scholarly journals Author Correction: Gate controlling of quantum interference and direct observation of anti-resonances in single molecule charge transport

2019 ◽  
Vol 19 (1) ◽  
pp. 127-127 ◽  
Author(s):  
Yueqi Li ◽  
Marius Buerkle ◽  
Guangfeng Li ◽  
Ali Rostamian ◽  
Hui Wang ◽  
...  
Keyword(s):  
Charge Transport ◽  
Direct Observation ◽  
Single Molecule ◽  
Quantum Interference

scholarly journals Computational design of donor-bridge-acceptor systems exhibiting pronounced quantum interference effects

2016 ◽  
Vol 18 (9) ◽  
pp. 6773-6779 ◽  
Author(s):  
Natalie Gorczak ◽  
Nicolas Renaud ◽  
Elena Galan ◽  
Rienk Eelkema ◽  
Laurens D. A. Siebbeles ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Single Molecule ◽  
Quantum Interference ◽  
Computational Design ◽  
Interference Effects ◽  
Single Molecule Junctions

Quantum interference is a well-known phenomenon that dictates charge transport properties of single molecule junctions.

scholarly journals Gate controlling of quantum interference and direct observation of anti-resonances in single molecule charge transport

2019 ◽  
Vol 18 (4) ◽  
pp. 357-363 ◽  
Author(s):  
Yueqi Li ◽  
Marius Buerkle ◽  
Guangfeng Li ◽  
Ali Rostamian ◽  
Hui Wang ◽  
...  
Keyword(s):  
Charge Transport ◽  
Direct Observation ◽  
Single Molecule ◽  
Quantum Interference

Multicenter‐Bond‐Based Quantum Interference in Charge Transport Through Single‐Molecule Carborane Junctions

2019 ◽  
Vol 131 (31) ◽  
pp. 10711-10715 ◽  
Author(s):  
Chun Tang ◽  
Lijue Chen ◽  
Longyi Zhang ◽  
Zhixin Chen ◽  
Guopeng Li ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Molecule ◽  
Quantum Interference

scholarly journals Heteroatom-Induced Molecular Asymmetry Tunes Quantum Interference in Charge Transport through Single-Molecule Junctions

2018 ◽  
Vol 122 (26) ◽  
pp. 14965-14970 ◽  
Author(s):  
Yang Yang ◽  
Markus Gantenbein ◽  
Afaf Alqorashi ◽  
Junying Wei ◽  
Sara Sangtarash ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Molecule ◽  
Quantum Interference ◽  
Molecular Asymmetry ◽  
Single Molecule Junctions

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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