Hopping transport in 1D chains (DNA vs. DLC)

被引：10
作者：
Kohary, K
Cordes, H
Baranovskii, SD
Thomas, P
Wendorff, JH
机构：
[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
[2] Univ Marburg, Dept Phys, D-35032 Marburg, Germany
[3] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany
[4] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
[5] Univ Marburg, Dept Chem, D-35032 Marburg, Germany
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2004年 / 241卷 / 01期
关键词：
D O I：
10.1002/pssb.200303627
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We discuss charge transport in one-dimensional organic solids (DNA and discotic liquid-crystalline glass (DLC)), focusing on the effects of static and dynamic disorder. In the presence of static disorder it can be shown that the temperature dependence of the low-field mobility is mu proportional to exp [-(T-0/T)(2)], with characteristic temperature To depending on the scale of the energy distribution of localized states responsible for transport. In the case of both static and dynamic disorder the situation is different. We obtain a temperature independent mobility in our molecular dynamics calculations in the case of large static and dynamic disorder compared to the energy overlap integral between the neighbouring sites. The theoretical results are in good agreement with experimental data. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA. Weinheim.
引用
收藏
页码：76 / 82
页数：7
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