Electron mobility measurement using exciplex-type organic light-emitting diodes

被引:49
作者
Kawabe, Y [1 ]
Abe, J [1 ]
机构
[1] Chitose Inst Sci & Technol, Chitose, Hokkaido 0668655, Japan
关键词
D O I
10.1063/1.1494105
中图分类号
O59 [应用物理学];
学科分类号
摘要
A method to measure the electron mobility in organics is demonstrated. Bilayer organic light-emitting diodes composed of donor-type and acceptor-type materials often show exciplex emission. We employed a triphenyldiamine derivative and an oxadiazole derivative (PBD) as hole and electron transporters, respectively, and confirmed that the emission is from exciplex. From the transient response of the device after application of pulsed voltage, the electron mobility of neat PBD film was evaluated to be 2.0x10(-5) cm(2)/V s under the electric field of 1 MV/cm. (C) 2002 American Institute of Physics.
引用
收藏
页码:493 / 495
页数:3
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