Completely Encapsulated Oligothiophenes: Synthesis, Properties, and Single-Molecule Conductance

被引:37
作者
Le, Yutaka [2 ,3 ]
Endou, Masaru [2 ]
Lee, See Kei [1 ]
Yamada, Ryo [1 ]
Tada, Hirokazu [1 ]
Aso, Yoshio [2 ]
机构
[1] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan
[2] Osaka Univ, ISIR, Osaka 5670047, Japan
[3] PREST JST, Kawaguchi, Saitama 3330012, Japan
关键词
conducting materials; conjugation; cyclic voltammetry; single-molecule studies; synthetic methods; EFFECTIVE CONJUGATION LENGTH; SPECTROSCOPIC PROPERTIES; ELECTRICAL CONDUCTANCE; WIRES; JUNCTIONS; ELECTRODES; UNITS;
D O I
10.1002/anie.201104700
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Proper shielding: Encapsulated oligothiophenes for the investigation of single-molecule conductance are described. UV/Vis/NIR measurements of the oxidized species show the absence of intermolecular interactions between the conjugated backbones. The conductance of a single-molecule junction was measured by modified STM techniques (see picture), and the decay constant β was determined to be 1.9 nm -1. SMU=source meter unit. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:11980 / 11984
页数:5
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