Abstract
In this letter, we demonstrate high-performance organic light-emitting diodes (OLEDs) by matching various hole injection-transport layers (HITLs) with plasma surface treatments. The OLED device with pentacene HITL on CF 4-plasma-treated indium tin oxide showed the highest performance due to relatively improved hole injection and the high-hole-mobility characteristics of the pentacene. Using a high-electron-mobility material as an electron transport layer to improve the carrier balance of electrons and holes, the electroluminescent efficiency was further improved. These methods are simple and promising for the enhancement of OLED performances. These findings will be applicable to mobile displays that feature low electric power consumption.
Original language | English |
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Article number | 6221945 |
Pages (from-to) | 1156-1158 |
Number of pages | 3 |
Journal | IEEE Electron Device Letters |
Volume | 33 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2012 |
Keywords
- CF -plasma (CF-{4} \hbox{-} \hbox{P}$) treatment
- Carrier mobility
- hole injection-transport layer (HITL)
- pentacene
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering