Abstract
We report a novel approach that leads to a significant improvement in the performance of transparent polymer light-emitting diodes (TPLEDs). By introducing a solution-based titanium oxide (TiO x) layer, we have demonstrated that the device performance of TPLEDs using aluminum-doped zinc oxide (AZO) top electrodes is enhanced. The TiO x layer lowers the energy barrier between the luminescent polymer and the AZO top electrode by modifying the WF of the top AZO electrodes. Moreover, the TiO x layer prevents the damage caused by UV radiation and by highly energetic ions generated during the AZO sputtering.
Original language | English |
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Article number | 133306 |
Journal | Applied Physics Letters |
Volume | 100 |
Issue number | 13 |
DOIs | |
State | Published - 26 Mar 2012 |