Abstract
In this paper, nanosecond pulsed laser is introduced as a method to pattern the metal cathode of organic light-emitting diodes (OLEDs) without shadow mask or cathode separator. This method can selectively ablate away cathode metal without damage on the underlying indium tin oxide anode or the surrounding organic layers. The width and morphology of laser ablation trenches were studied as a function of energy fluence as well as pulse number of laser. The uniform ablation trench was obtained with 16 pulses at the laser fluence of 0.15J/cm2. It was found that the characteristics of OLED prepared with laser ablation under optimum ablation process were almost the same with that of OLEDs prepared with other two patterning methods.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
