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Conjugated Thiol Linker for Enhanced Electrical Conduction of Gold−Molecule Contacts
Journal article   Peer reviewed

Conjugated Thiol Linker for Enhanced Electrical Conduction of Gold−Molecule Contacts

Alexei V Tivanski, Yufan He, Eric Borguet, Haiying Liu, Gilbert C Walker and David H Waldeck
The journal of physical chemistry. B, Vol.109(12), pp.5398-5402
03/01/2005
DOI: 10.1021/jp050022d
PMID: 16851569

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Abstract

Single-molecule electrical conduction studies are used to evaluate how the molecular linking unit influences the tunneling efficiency in metal-molecule-metal (m-M-m) junctions. This work uses conducting-probe atomic force microscopy (CP-AFM) to compare the molecular conduction of two π-bonded molecules: one with a single thiol linker, and another with a conjugated double thiol linker at both ends of the molecules. The results demonstrate that the molecule with conjugated double thiol linkers displays higher conduction in gold-molecule-gold junctions than nonconjugated single thiol-gold contacts. © 2005 American Chemical Society.

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