Impedance spectroscopy of π-conjugated organic materials

被引：14
|
作者：
Kim, SH [1 ]
Chu, HY
Zyung, T
Yang, YS
机构：
[1] ETRI, Future Technol Res Div, Taejon, South Korea
[2] ETRI, Basic Res Lab, Taejon, South Korea
来源：
ETRI JOURNAL | 2004年 / 26卷 / 02期
关键词：
organic; semiconductor; impedance; spectroscopy;
D O I：
10.4218/etrij.04.0102.0018
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
AC electrical properties of organic light-emitting diodes with poly(2-metboxy-5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV), poly[2,5-bia(dimethyloctylsilyl)-1,4-phenylene-vinylene] (BDMOS-PPV), and tris-(8-hydroxyquinolate)-aluminum (AIQ(3)) as light-emitting materials are studied. The frequency-dependent real and imaginary parts of impedance were fitted using an equivalent circuit. We found that the conduction mechanism is a space-charge limited current with exponential trap distribution.
引用
收藏
页码：161 / 166
页数：6
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