Molecular diodes based on conjugated diblock co-oligomers

被引：181

作者：

Ng, MK

Lee, DC

Yu, LP

机构：

[1] Univ Chicago, Dept Chem, Chicago, IL 60637 USA

[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 40期

关键词：

D O I：

10.1021/ja026808w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This report describes synthesis and characterization of a molecular diode based upon a diblock conjugated oligomer system. This system consists of two conjugated blocks with opposite electronic demand. The molecular structure exhibits a built-in electronic asymmetry, much like a semiconductor p-n junction. Electrical measurements by scanning tunneling spectroscopy (STS) clearly revealed a pronounced rectifying effect. Definitive proof for the molecular nature of the rectifying effect in this conjugated diblock molecule is provided by control experiments with a structurally similar reference compound. Copyright © 2002 American Chemical Society.

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页码：11862 / 11863

页数：2

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