Conduction mechanism of organic semiconductor AlQ3:: Impedance spectroscopy analysis

被引：23
|
作者：
Kim, SH [1 ]
Lim, SC [1 ]
Lee, JH [1 ]
Zyung, T [1 ]
机构：
[1] Elect & Telecommun Res Inst, Basic Res Lab, Taejon 305350, South Korea
来源：
CURRENT APPLIED PHYSICS | 2005年 / 5卷 / 01期
关键词：
organic; semiconductor; conduction; impedance; transport; polymer;
D O I：
10.1016/j.cap.2003.11.072
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By impedance spectroscopy analysis, the conduction mechanism of the organic semiconductor of tris-(8-hydroxyquinolate)-aluminum (AlQ(3)) is studied. Equivalent circuit analysis was performed with a series resistance and a pair of a parallel capacitance and a parallel resistance. It is found that the conduction mechanism seems to be space-charge limited current with exponential trap distribution, and the dielecric relaxation time of the material is decreased dramatically with increasing applied bias voltages. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：35 / 37
页数：3
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