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 |
Bibliographical note
Funding Information:Manuscript received March 14, 2011; revised May 1, 2012; accepted May 1, 2012. Date of publication June 20, 2012; date of current version July 20, 2012. This work was supported in part by the Industrial Strategic Technology Development Program (Development of Fundamental Technologies for Flexible Combined-Function Organic Electronic Device) funded by the Ministry of Knowledge Economy (Korea) under Grant KI002104, by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (MEST) under Grant CAFDC-20120000816, and by the World Class University Project by MEST under Grant R32-2008-000-10082-0. The review of this letter was arranged by Editor C. Jagadish.
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