EDP Sciences Journals List
Home Document
Subscriber Authentication Point
Issue Eur. Phys. J. Appl. Phys.
Volume 24, Number 3, December 2003
Page(s) 195 - 200
Section Surfaces, Thin Foils and Nanomaterials
DOI 10.1051/epjap:2003067
Published online 16 September 2003

Eur. Phys. J. Appl. Phys. 24, 195-200 (2003)
DOI: 10.1051/epjap:2003067

Degradation kinetics of the spectral emission in polyfluorene light-emitting electro-chemical cells and diodes

T. Ouisse1, O. Stéphan1 and M. Armand2

1  Laboratoire de Spectrométrie Physique, Université Joseph Fourier, Grenoble 1 and CNRS UMR C5588, 140 rue de la physique, BP 87, 38042, Saint-Martin d'Hères Cedex, France
2  Laboratoire International sur les Matériaux Électroactifs, CNRS, UMR 2289, Université de Montréal, CP 6128, Montréal QC H3C 3J7, Canada

ouisse@spectro.ujf-grenoble.fr

(Received: 21 March 2003 / Received in final form: 4 July 2003 / Accepted: 10 July 2003 Published online: 16 September 2003 )

Abstract
We have studied the well known spectral shift of polyfluorene blue light emitters, using either electrochemical cells or conventional organic light emitting diodes. From the recording of the electroluminescence spectra as a function of "stress" time, we conclude that the degradation mainly depends on the number of electrons which have passed through the conducting polymer, rather than on the hole current magnitude or the dissipated power.

PACS
73.61.Ph - Polymers; organic compounds.
72.80.Le - Polymers; organic compounds (including organic semiconductors).
85.60.Jb - Light-emitting devices.

© EDP Sciences 2003


What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.