Conjugated thiol linker for enhanced electrical conduction of gold-molecule contacts

被引：78

作者：

Tivanski, AV

He, YF

Borguet, E

Liu, HY

Walker, GC ^{[1
]}

Waldeck, DH

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

[2] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA

[3] Michigan Technol Univ, Dept Chem, Houghton, MI 49931 USA

[4] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 12期

关键词：

D O I：

10.1021/jp050022d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 pi-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.

引用

收藏

页码：5398 / 5402

页数：5

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