Wenbo Chen
Columbia University
5 Papers
132 Citations
Wenbo Chen is an academic researcher from Columbia University. The author has contributed to research in topics: Conductance & Covalent bond. The author has an hindex of 5, co-authored 5 publications.
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Papers
In situ formation of highly conducting covalent Au-C contacts for single-molecule junctions.
Zhan-Ling Cheng,Rachid Skouta,Héctor Vázquez,Jonathan R. Widawsky,Severin T. Schneebeli,Wenbo Chen,Mark S. Hybertsen,Ronald Breslow,Latha Venkataraman +8 more
TL;DR: Control experiments and ab initio calculations show that high conductances are achieved because a covalent Au-C sigma (σ) bond is formed, which offers a new method for making reproducible and highly conducting metal-organic contacts.
277
Highly conducting π-conjugated molecular junctions covalently bonded to gold electrodes.
Wenbo Chen,Jonathan R. Widawsky,Héctor Vázquez,Severin T. Schneebeli,Mark S. Hybertsen,Ronald Breslow,Latha Venkataraman +6 more
TL;DR: Electronic conductance is measured through single conjugated molecules bonded to Au metal electrodes with direct Au-C covalent bonds using the scanning tunneling microscope based break-junction technique to show near-resonant transmission, with a crossover to tunneling for the longer oligomers.
198
Length-dependent thermopower of highly conducting Au-C bonded single molecule junctions.
Jonathan R. Widawsky,Wenbo Chen,Héctor Vázquez,Taekyeong Kim,Ronald Breslow,Mark S. Hybertsen,Latha Venkataraman +6 more
TL;DR: A tight-binding model that explicitly includes the gateway states and the molecular backbone states accurately captures the experimentally measured conductance and thermopower trends is reported.
Aromaticity Decreases Single-Molecule Junction Conductance.
Wenbo Chen,Haixing Li,Jonathan R. Widawsky,Chandrakumar Appayee,Latha Venkataraman,Ronald Breslow +5 more
TL;DR: It is found that the single-molecule conductance of these three wires correlates negatively with the resonance energy of the five-membered ring; the nonaromatic cyclopentadiene derivative has the highest conductance, while the most aromatic of this series, thiophene, has the lowest.
159
Highly Conducting pi-Conjugated Molecular Junctions Covalently Bonded to Gold Electrodes
Wenbo Chen,Jonathan R. Widawsky,Héctor Vázquez,Severin T. Schneebeli,Mark S. Hybertsen,Ronald Breslow,Latha Venkataraman +6 more
TL;DR: In this article, the authors measured electronic conductance through single conjugated molecules bonded to Au metal electrodes with direct Au-C covalent bonds using the scanning tunneling microscope based break-junction technique.
132