AVS 53rd International Symposium
    Electronic Materials and Processing Thursday Sessions
       Session EM-ThP

Paper EM-ThP53
Luminescence Properties of Organic Light Emitting Diodes using Chemical Mechanical Polishing Process

Thursday, November 16, 2006, 5:30 pm, Room 3rd Floor Lobby

Session: Electronic Materials and Processing Poster Session
Presenter: G.-W. Choi, Chosun University, Korea
Authors: G.-W. Choi, Chosun University, Korea
W.-S. Lee, Chosun University, Korea
Y.J. Seo, Daebul University, Korea
P.-G. Jung, Chosun University, Korea
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Indium tin oxide thin film has attracted intensive interest because of their unique characteristics of good conductivity, high optical transmittance over the visible wavelength region, excellent adhesion to the substrate, stable chemical properties and easy patterning ability. ITO thin films have found many applications in solar battery, illuminators, optical switches, liquid crystal displays, plasma display panels, and organic light emitting displays. However, some problems such as peaks, bumps, large particles, and pin-holes on the surface of ITO thin film were reported, which caused the destruction of color quality, the reduction of device life time, and short-circuit. The interface between the electrode and organic layer in OLEDs has been reported as an important factor to influence the electrical and luminescent properties. Chemical mechanical polishing (CMP) process is one of the suitable solutions, which could solve the above-mentioned problems. In this work, we report the effect of polished ITO surface on the luminescent performance of the OLEDs. This work was supported by a Korea Research Foundation grant (KRF-2004-005-D00007).