Intra-molecular electron transfer and electric conductance via sequential hopping: Unified theoretical description

被引：56

作者：

Berlin, YA

Ratner, MA

机构：

[1] Northwestern Univ, Dept Chem, Ctr Nanofabricat & Mol Self Assembly, Evanston, IL 60208 USA

[2] Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA

来源：

RADIATION PHYSICS AND CHEMISTRY | 2005年 / 74卷 / 3-4期

关键词：

electron transfer; molecular electronics; hopping mechanism of charge transport;

D O I：

10.1016/j.radphyschem.2005.04.004

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：

The relation between intra-molecular electron transfer in the donor-bridge-acceptor system and zero-bias conductance of the same bridge in the metal-molecule- metal junction is analyzed for the sequential hopping regime of both processes. The electron transfer rate and Molecular conductance are expressed in terms of rates characterizing each individual step of electron motion. Based on the results obtained. we derive the analytical expression that relates these two quantities in the general case of the energy landscape governing hopping transport. (C) 2005 Elsevier Ltd. All rights reserved.

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页码：124 / 131

页数：8

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