Molecular light-emitting diodes using quinquethiophene Langmuir-Blodgett films

Pal, A. J. ; Paloheimo, J. ; Stubb, H. (1995) Molecular light-emitting diodes using quinquethiophene Langmuir-Blodgett films Applied Physics Letters, 67 (26). pp. 3909-3911. ISSN 0003-6951

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Official URL: http://apl.aip.org/resource/1/applab/v67/i26/p3909...

Related URL: http://dx.doi.org/10.1063/1.115314

Abstract

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 photo- luminescence spectrum.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Electroluminescence; Langmuir-Blodgett Films; Light Emitting Diodes; Organic Compounds; Photoluminescence; Quantum Efficiency; Visible Spectra
ID Code:65643
Deposited On:17 Oct 2011 10:42
Last Modified:17 Oct 2011 10:42

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