Dual-layer light emitting devices based on polymeric Langmuir-Blodgett films

被引：12

作者：

Jung, GY

Pearson, C

Kilitziraki, M

Horsburgh, LE

Monkman, AP

Samuel, IDW

Petty, MC

机构：

[1] Univ Durham, Sch Engn, Durham DH1 3LE, England

[2] Univ Durham, Ctr Mol Elect, Durham DH1 3LE, England

[3] Univ Durham, Dept Phys, Durham DH1 3LE, England

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2000年 / 10卷 / 01期

关键词：

D O I：

10.1039/a903484f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Poly(2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene) (MEH-PPV) and poly(6-hexylpyridine-2,5-diyl) (PHPY) Langmuir-Blodgett films have been used as emitting layer and electron transporting layer, respectively, in light emitting diodes. The electrical and opto-electrical characteristics of the dual-layer devices have been compared to single layer devices based on MEH-PPV. AC impedance measurements over the frequency range 5 Hz-13 MHz have been used to provide an insight into the electrical equivalent circuit of the devices. The external quantum efficiency of the dual-layer structure was found to be approximately ten times higher than that of the single layer device.

引用

页码：163 / 167

页数：5

共 24 条

[1] Imaging of the ageing on organic electroluminescent diodes, under different atmospheres by impedance spectroscopy, scanning electron microscopy and SIMS depth profiling analysis [J].