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Performance of Organic light-emitting diode by various surface treatments of indium tin oxide  

Kim, Sun-Hyuk (Dept. of Electrical Eng., Sejong Univ.)
Han, Jeong-Whan (Dept. of Electrical Eng., Sejong Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.39, no.9, 2002 , pp. 1-10 More about this Journal
Abstract
We have done various treatments of indium tin oxide (ITO) surface for organic light-emitting diodes (OLEDs), and investigated the surface states by different surface treatments using atomic force microscopy (AFM) and Auger electron spectroscopy (AES). We have fabricated OLEDs deposited by ultra-high vacuum molecular beam deposition system and studied the characteristics of the OLEDs. We have observed the dramatical improvement of the performance of OLEDs fabricated on ITO substrates treated by $O_2$ plasma treatment reduces the carbon comtamination of ITO surfaces and increases the work function of ITO.
Keywords
Organic light-emitting diodes(OLEDs); luminance efficiency; external quantum efficiency; ultra-high vacuum molecular beam deposition; Auger Electron Spectroscopy;
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