Measurements of contact specific low-bias negative differential resistance of single metalorganic molecular junctions

Negative differential resistance (NDR) behaviors of single molecule junctions composed of a thiol-terminated Ru(ii) bis-terpyridine (Ru(tpy-SH)2) molecule sandwiched between two gold electrodes are measured using a specifically modified scanning probe microscope break junction technique (SPMBJ) at r...

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Bibliographic Details
Published in:Nanoscale 2013-01, Vol.5 (13), p.5715
Main Authors: Zhou, Jianfeng, Samanta, Satyabrata, Guo, Cunlan, Locklin, Jason, Xu, Bingqian
Format: Article
Language:English
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Summary:Negative differential resistance (NDR) behaviors of single molecule junctions composed of a thiol-terminated Ru(ii) bis-terpyridine (Ru(tpy-SH)2) molecule sandwiched between two gold electrodes are measured using a specifically modified scanning probe microscope break junction technique (SPMBJ) at room temperature. The low-bias (0.623 ± 0.135 V) NDR observed for one of the three conductance groups is contact specific and is caused by a bias induced electrode-molecule coupling changes.
ISSN:2040-3364
2040-3372
DOI:10.1039/c3nr01284k