Probing Hopping Conduction in Conjugated Molecular Wires Connected to Metal Electrodes

被引：157

作者：

Luo, Liang ^{[1
]}

Choi, Seong Ho ^{[1
]}

Frisbie, C. Daniel ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 03期

基金：

美国国家科学基金会;

关键词：

SELF-ASSEMBLED MONOLAYERS; ATOMIC-FORCE MICROSCOPY; CHARGE-TRANSPORT; ACTIVATED CONDUCTION; CONTACT RESISTANCE; LENGTH DEPENDENCE; JUNCTIONS; LONG; POLYMER; TEMPERATURE;

D O I：

10.1021/cm102402t

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：

Understanding electrical transport processes in molecules connected between metal electrodes is a central focus in the field of molecular electronics and is important for both potential applications and fundamental research purposes. This short review summarizes recent progress in assembling and measuring strategies for long conjugated molecular wires within molecular junctions, and introduces several new in situ methods to prepare molecular wires connected to electrodes. Following a brief introduction to charge transport mechanisms, particular examples of molecular wires in the recent literature are presented to discuss the influence of molecular length, temperature, and applied voltage on the transport properties with emphasis on the tunneling-to-hopping transition. The review concludes with an outlook on future hopping transport experiments in long conjugated molecular wires.

引用

页码：631 / 645

页数：15

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