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Proceedings Paper

Resonant-cavity organic light-emitting diodes for low-cost optical interconnects on CMOS silicon circuits
Author(s): Frederique Jean; Jean-Yves Mulot; Bernard Geffroy; Christine Denis; Pierre Cambon; Jean-Michel Nunzi
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Paper Abstract

The possibility to integrate an optical emitter at any point in a silicon integrated circuit would represent a major breakthrough in the field of optical interconnects. The outstanding properties of luminescent organic semiconductors, such as their ability to be deposited on various substrates and their efficiency, make them good candidates for this kind of applications, but organic light-emitting diodes (OLEDs) are characterized by broad spectra and angular emission patterns which prevent their integration in an optical interconnection system. So, we study resonant-cavity organic light-emitting diodes (RC-OLEDs) such as Al/ITO/CuPc/TPD/Alq3/Al which are made on silicon substrates. Aluminum is chosen to make the mirrors because of its compatibility with CMOS technology. The devices are characterized by electroluminescence, and their current-voltage characteristics are measured. We study the influence of the electrodes on the electrical characteristics of the devices. We describe these planar multilayer microcavities using a transfer-matrix multiplication method. The experimental results that we obtain with two samples allow us to calculate the dependence of the refractive index of the ITO layer on the wavelength. We compare our experimental and theoretical results and find a good agreement between them.

Paper Details

Date Published: 18 December 2002
PDF: 9 pages
Proc. SPIE 4798, Linear and Nonlinear Optics of Organic Materials II, (18 December 2002); doi: 10.1117/12.451931
Show Author Affiliations
Frederique Jean, Institut Superieur d'Electronique de Bretagne and Univ. d'Angers (France)
Jean-Yves Mulot, Institut Superieur d'Electronique de Bretagne (France)
Bernard Geffroy, CEA-LETI (France)
Christine Denis, CEA-LETI (France)
Pierre Cambon, Institut Superieur d'Electronique de Bretagne (France)
Jean-Michel Nunzi, Univ. d'Angers (France)

Published in SPIE Proceedings Vol. 4798:
Linear and Nonlinear Optics of Organic Materials II
Manfred Eich; Mark G. Kuzyk, Editor(s)

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