Device characteristics of polymer light-emitting diodes

被引：16

作者：

Blom, PWM

deJong, MJM

Liedenbaum, CTHF

Vleggaar, JJM

机构：

来源：

SYNTHETIC METALS | 1997年 / 85卷 / 1-3期

关键词：

light sources; poly(phenylene vinylene); transport measurements;

D O I：

10.1016/S0379-6779(97)80244-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model describing the device characteristics of polymer light-emitting diodes (PLEDs) is presented. The recent observation that in poly(p-phenylene vinylene) (PPV) the hole current is space-charge-limited whereas the electron current is strongly reduced by traps is taken into account. It is calculated that such an unbalanced electron and hole transport gives rise to a bias dependent efficiency. By comparison with experiment it is found that the recombination process in PPV is mainly non-radiative. Only 5% of the total number of recombinations contributes to the light-output of the PLED.

引用

页码：1287 / 1288

页数：2

共 6 条

[1] Electron and hole transport in poly(p-phenylene vinylene) devices [J].