Degradation effects in polymer light emitting devices due to heat treatment

F.J.J. Janssen, M. Sturm, L.J. IJzendoorn, van, A.W. Denier van der Gon, H.F.M. Schoo, M.J.A. Voigt, de, H.H. Brongersma

Research output: Contribution to journalArticleAcademicpeer-review


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
Issue number1
Publication statusPublished - 2004


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