Abstract
The profile of the emission zone (PEZ) in the emissive layer (EML) of polymericorganic light-emitting diodes(OLEDs) is determined by fitting the measured electroluminescencespectrum of the device with a series of simulated spectra that correspond to different emitter locations. The studied OLEDs are based on two different blue-emitting conjugated polymers. In one case, the PEZ is confined to a 10 nm thin sheet at the anode indicating electron dominated current in the EML. In OLEDs based on the other emitter, the PEZ spreads over the entire EML.
Original language | English |
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Pages (from-to) | 263301 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 94 |
Issue number | 26 |
DOIs | |
Publication status | Published - 30 Jun 2009 |
Keywords
- Organic light emitting diodes
- POLYMERS
- Emission spectra
- ANODES
- CATHODES