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
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.
引用
收藏
页码:11862 / 11863
页数:2
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