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Light-Emitting Devices Based on a Binuclear Complex of Ruthenium(II) with Crown Ether as Solid Electrolyte

Published online by Cambridge University Press:  21 March 2011

Frédéric Lafolet ,
Karine Gorgy ,
Jean-Claude Leprêtre  and
Olivier Stéphan
Frédéric Lafolet
Affiliation:
Laboratoire d'Electrochimie Organique et de Photochimie Redox, Université Joseph Fourier Grenoble 1 and CNRS (UMR 5630), B.P. 53, 38041 Grenoble Cedex 9, France
Karine Gorgy
Affiliation:
Laboratoire d'Electrochimie Organique et de Photochimie Redox, Université Joseph Fourier Grenoble 1 and CNRS (UMR 5630), B.P. 53, 38041 Grenoble Cedex 9, France
Jean-Claude Leprêtre
Affiliation:
Laboratoire d'Electrochimie Organique et de Photochimie Redox, Université Joseph Fourier Grenoble 1 and CNRS (UMR 5630), B.P. 53, 38041 Grenoble Cedex 9, France
Olivier Stéphan
Affiliation:
Laboratoire de Spectrométrie Physique, Université Joseph Fourier Grenoble 1 and CNRS (UMR C5588), 140 rue de la physique, B.P. 87 Saint Martin d'Hères Cedex, France
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Abstract

Solid-state light-emitting devices have been fabricated by using blends of a binuclear complex of ruthenium(II), with both 1,6-bis[4-(4'-methyl-2,2'-bipyridyl)]hexane and regular 2,2'-bipyridine ligands and lithium trifluorosulfonate/18-crown-6 ether complex. Orange light is emitted for low turn on voltage, i.e. ranging from 2.5-3V, close to the electrochemical gap of the binuclear Ru-based complex. However, the device performances decrease upon operation within few hours. We report that the main degradation process involved in the decrease of the light emission intensity during device operation is based on an electrochemical degradation of the ruthenium complex, mainly a loss of capacity on the reduction side.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 660: Symposia JJ – Organic Electronic & Photonic Materials and Devices , 2000 , JJ5.34
Copyright
Copyright © Materials Research Society 2001

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References

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