| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
Controllable Large-Area Cathode Patterning for Organic Light-Emitting Diodes Using Highly-Aligned Organic Fibers |
| 초록 |
Cathode patterning is an essential process for creating organic light-emitting diode (OLED) pixels. In this work, we report a controllable large-area cathode patterning technique without damage to organic layers using highly-aligned polymer fiber arrays fabricated by electrohydrodynamic organic nanowire printing (ONP). ONP provides a straightforward and inexpensive way for fabricating cathode separators, and this process allows a very high fiber printing speed and the accurate control of inter-fiber separation, which makes it suitable for large-area OLED sub-pixel fabrication. The organic fibers with an average diameter of ~1.11 μm worked well as cathode separators, which was clearly demonstrated by scanning electron micrographs. The patterned OLEDs showed comparable current and luminous efficiencies compared to a reference device. |
| 저자 |
조힘찬, 정수훈, 민성용, 한태희, 박민호, 김영훈, 이태우
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| 소속 |
POSTECH |
| 키워드 |
cathode patterning; organic fibers; organic light-emitting diodes; large-area
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| E-Mail |
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