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
收藏
页码：163 / 167
页数：5
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