Conformational molecular rectifiers

被引:112
作者
Troisi, A
Ratner, MA
机构
[1] Northwestern Univ, Dept Chem, Mat Res Ctr, Evanston, IL USA
[2] Northwestern Univ, Ctr Nanofabricat & Mol Self Assembly, Evanston, IL USA
关键词
D O I
10.1021/nl0352088
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Unimolecular rectification based on voltage-controlled intramolecular stereochemical modification is suggested and computationally investigated. In sharp contrast to present molecular rectifiers, these conformational molecular rectifiers (CMRs) differ in principle from silicon structures, deriving their large, strongly temperature-dependent rectification from the differing current pathways in two dominant conformations, controlled by the interelectrode applied field. Two sorts of CMRs, one based on contact modulation the other on bridge modulation, are calculated: an ambient rectification ratio of 10(2) can be approached.
引用
收藏
页码:591 / 595
页数:5
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