Molecular light-emitting diodes using quinquethiophene Langmuir-Blodgett films

被引：37

作者：

Pal, AJ

Paloheimo, J

Stubb, H

机构：

[1] Åbo Akademi University, Department of Physics, FIN-20500 Åbo

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 26期

关键词：

D O I：

10.1063/1.115314

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report extended studies on electroluminescence from molecularly thin semiconducting Langmuir-Blodgett films of quinquethiophene. The effect of the thickness of active layer and cathode electrode material has been investigated. From all these devices, greenish electroluminescence (visible in a dark room) has been observed with quantum efficiencies of the order of 10-3%. Even five or nine layers of Langmuir-Blodgett films yield the same luminance as thicker films. The electroluminescence spectrum showed a profile identical to the photoluminescence spectrum. (C) 1995 American Institute of Physics.

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页码：3909 / 3911

页数：3

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