Date

Place

[P2-120]
14:00 ~ 15:30
Title:Transparent Cathode for White Top Emitting Organic Light Emitting Diodes
Mi Jin Park, Dae Hyun Ahn, and Jang Hyuk Kwon (Kyung Hee Univ., Korea)
Abstract: In this paper, we report a new transparent cathode structure for white TEOLEDs. To suppress the micro-cavity effect in TEOLED, herein we mixed Ag and high refractive index metal oxide materials, such as WO3 and MoO3, with various ratios. Co-deposited Ag with oxide materials might show island state which could give rise to scattering effect and we believe that it may suppress the micro-cavity effect. The MoO3 mixed Ag layer shows better transmittance and sheet resistance characteristics. Detailed optimization ways on highly transparent cathode for white TEOLEDs and the optical design as well as their fabrication will be discussed in the presentation. The sample structure for the measurement of transmittance was ETL(20 nm)/mixed layer (Ag?: MoO3)/Organic capping layer and its transmittance?was 69.4 %.
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