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Conductance of a single molecule anchored by an isocyanide substituent to gold electrodes

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Title: Conductance of a single molecule anchored by an isocyanide substituent to gold electrodes
Authors: Kiguchi, Manabu Browse this author
Miura, Shinichi Browse this author
Hara, Kenji Browse this author
Sawamura, Masaya Browse this author
Murakoshi, Kei Browse this author
Issue Date: 21-Nov-2006
Publisher: The American Institute of Physics
Journal Title: Applied Physics Letters
Volume: 89
Issue: 213104
Publisher DOI: 10.1063/1.2392816
Abstract: The effect of anchoring group on the electrical conductance of a single molecule bridging two Au electrodes was studied using disubstituted [isocyanide (CN–), thiol (S–), or cyanide (NC–)] benzene. The conductance of a single Au/1,4-diisocyanobenzene/Au junction anchored by isocyanide via a C atom (junction with the Au–CN bond) was 3×10−3G0(=2e2/h). The value was comparable to 4×10−3G0 of a single Au/1,4-benzenedithiol/Au junction with the Au–S bond. The Au/1,4-dicyanobenzene/Au molecular junction with the Au–NC bond did not show well-defined conductance values. The metal-molecule bond strength was estimated by the distance over which the molecular junction was stretched before breakdown. The stretched length of the molecular junction with the Au–CN bond was comparable to that of the Au junction, indicating that the Au–CN bond was stronger than the Au–Au bond. ©2006 American Institute of Physics
Rights: Copyright © 2006 American Institute of Physics
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 木口 学

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