Electrode versus space-charge-limited conduction in organic light-emitting diodes

被引：42
|
作者：
Wolf, U [1 ]
Barth, S
Bässler, H
机构：
[1] Univ Marburg, Inst Phys Chem Makromol Chem & Kernchem, D-35032 Marburg, Germany
[2] Univ Marburg, Zentrum Mat Wissensch, D-35032 Marburg, Germany
来源：
APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 14期
关键词：
D O I：
10.1063/1.124907
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A criterion is established to distinguish electrode limited charge injection from a metal into a random organic dielectric from space charge limited current flow. The crucial material parameters are the charge carrier mobility and the zero field injection barrier. It rests upon parametrizing the injection current as a function of electric field, temperature, and injection barrier by mutual adjustment of the electron current injected across a Mg:Ag\Alq(3) electrode on the one hand and Monte Carlo simulation of the injection yield for a hopping system on the other hand. (C) 1999 American Institute of Physics. [S0003-6951(99)00340-X].
引用
收藏
页码：2035 / 2037
页数：3
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