How to make ohmic contacts to organic semiconductors

被引:278
作者
Shen, YL [1 ]
Hosseini, AR [1 ]
Wong, MH [1 ]
Malliaras, GG [1 ]
机构
[1] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA
关键词
D O I
10.1002/cphc.200300942
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 process of charge injection plays an important role in organic semiconductor devices. We review various experimental techniques that allow injection to be separated from other competing processes, and quantify the injection efficiency of a contact. We discuss the dependence of the injection efficiency on parameters such as the energy barrier at the interface, the carrier mobility of the organic semiconductor, its carrier density (doping level), the presence of mobile ions, and the sample geometry. Based on these findings, we outline guidelines for forming ohmic contacts and present examples of contact engineering in organic semiconductor devices.
引用
收藏
页码:16 / 25
页数:10
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