Presentation Information
[18p-P08-10]Evaluation of Organic EL Devices with MgAg Cathode Formed by Sputtering
〇Hiroki Sugawara1, Toshiharu Uchida1, Yukio Matsumoto1 (1.Canon Tokki Corp.)
Keywords:
transperent upper electrode,MgAg sputter,top emission OLED
In order to further increase the size of organic EL panels, we are considering forming the upper electrode by sputtering. In this study, we compared the current and voltage brightness characteristics of a sputtered device formed using a cylindrical MgAg target with that of a vapor-deposited device. By inserting LiF to improve electron injection, we were able to obtain a luminescence starting voltage of less than 1V and the same current luminance efficiency compared to a vapor-deposited device.
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