Highly transparent polymer light-emitting diode using modified aluminum-doped zinc oxide top electrode

Sung Heum Park, Byoung Hoon Lee, Jong Moon Shin, Se Young Jeong, Suhee Song, Hongsuk Suh, Kwanghee Lee

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

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 languageEnglish
Article number133306
JournalApplied Physics Letters
Volume100
Issue number13
DOIs
StatePublished - 26 Mar 2012

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