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Modifications of ITO Surfaces in Organic EL Devices by $O_2$ Plasma Treatment  

박상무 (인하대학 전기공학과)
김형권 (한국소방검정공사)
이덕출 (인하대학 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.52, no.6, 2003 , pp. 261-266 More about this Journal
Abstract
We investigated the effect of oxygen plasma treatment of indium-tin oxide(ITO) surface on the performance of electroluminescence(EL) devices. ITO surface treated oxygen plasma has been analyzed using atomic force microscope(AFM) and X-ray photoelectron spectroscopy(XPS), to investigate the relations between the properties of the ITO surface and the properties of the current-voltage-luminance(I-V-L) characteristics of the fabricated OLED with the structure of ITO(plasma treatment) / TPD / Alq$_3$/ Al. It is found that the oxygen plasma treatment of ITO anode improve the hole injection of the OLED due to the modification of the surface states. The treated ITO anode nay be low voltage with high luminance efficiency.
Keywords
oxygen plasma treatment; indium-tin oxide(ITO); electroluminescence(EL); OLED;
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Times Cited By KSCI : 1  (Citation Analysis)
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