CURRENT HEATING IN POLYMER LIGHT-EMITTING-DIODES

We present an investigation of current-induced heating in polymer ligh t emitting diodes. Using short electrical pulse measurements, we were able to quantify the temperature rise in the active region. We conside r that heating effects play a major role in limiting the maximum effic iency of devices and in initiating degradation mechanisms. Heating and heat sinking are also discussed in the context of electrically pumped polymer lasers. (C) 1998 American Institute of Physics.