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Molecular Wires in Single‐Molecule Junctions: Charge Transport and Vibrational Excitations
Author(s) -
Ballmann Stefan,
Hieringer Wolfgang,
Secker Daniel,
Zheng Qinglin,
Gladysz John A.,
Görling Andreas,
Weber Heiko B.
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200900974
Subject(s) - molecule , molecular vibration , charge (physics) , molecular wire , molecular electronics , string (physics) , chemical physics , density functional theory , molecular physics , chemistry , materials science , physics , computational chemistry , quantum mechanics , organic chemistry
We investigate the effect of vibrations on the electronic transport through single‐molecule junctions, using the mechanically controlled break junction technique. The molecules under investigation are oligoyne chains with appropriate end groups, which represent both an ideally linear electrical wire and an ideal molecular vibrating string. Vibronic features can be detected as satellites to the electronic transitions, which are assigned to longitudinal modes of the string by comparison with density functional theory data.