Degradation effects in polymer light emitting devices due to heat treatment

Frank Janssen, Marco Sturm, Leo van IJzendoorn, Arnoud Denier van der Gon, Herman Schoo, Martien de Voigt, Hidde Brongersma

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The characteristics of polymer light emitting diodes (PLEDs) (ITO/PPV/Ca) depend strongly on the conditions during preparation and operation. We studied the effects of heat treatment (during and after preparation) of PLEDs with OC1C10-PPV as active layer. PLEDs showed a reduction of both the current and the light output to 40 % after annealing for only 30 min at 65 °C. Effects on I-V characteristics were studied by measuring single carrier devices (hole- and electron-dominated devices). The current reduction after heat treatment can be ascribed to degradation of the ITO/PPV and the Ca/PPV interfaces.
Original languageEnglish
Pages (from-to)225-230
JournalMacromolecular symposia
Volume212
Issue number1
DOIs
Publication statusPublished - Apr 2004
Externally publishedYes

Keywords

  • annealing
  • conjugated polymer
  • degradation
  • interfaces
  • light emitting diodes (LED)

Cite this

Janssen, F., Sturm, M., van IJzendoorn, L., van der Gon, A. D., Schoo, H., de Voigt, M., & Brongersma, H. (2004). Degradation effects in polymer light emitting devices due to heat treatment. Macromolecular symposia, 212(1), 225-230. https://doi.org/10.1002/masy.200450822