期刊
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
卷 8, 期 1, 页码 74-80出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.201308111
关键词
charge transfer; doping; organic field-effect transistors; carrier mobility; excitons; interfaces
资金
- Hongik University Research Fund
We studied various aspects relating to surface charge-transfer-induced doping at an organic/organic interface using in situ electrical measurements with a field-effect transistor (FET) during the formation of the electron donor/acceptor interface. Adsorption of the electron-accepting molecules (C-60) on top of the electron donating molecules (-6T) led to an increase in the FET hole mobility in an -6T film. Under illumination, the FET hole mobility in the -6T film with C-60 deposition was significantly increased in comparison with that in the dark due to exciton dissociation at the C-60/-6T interface, resulting in a large threshold voltage shift. The origin of the mobility increase is explained by the multiple trapping and release (MTR) model in which the mobility is determined by the carrier density. Various phenomena relevant to charge transfer and charge transport at the organic/organic interface are reported and their origins are discussed. ((c) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据