| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
organic/inorganic multilayer passivation for OLEDs using VDP polyimides based on vacuum thermal evaporation as an organic interlayer |
| 초록 |
The penetration of water vapor and oxygen has been a critical issue for organic light emitting diodes(OLEDs) because organic active layer and electrodes of OLEDs are degraded by water vapor and oxygen. For this reason, the organic/inorganic multilayer passivation method is proposed as one of the solution which can block water vapor and oxygen. In this research, vacuum-deposition polymerized(VDP) polyimides formed by using vacuum thermal evaporable dianhydrides and diamines under high vacuum condition is applied as an organic interlayer. In the result of applying VDP polyimides to organic/inorganic multilayer with inorganic interlayer deposited by plasma-enhanced atomic layer deposition(PEALD) process and measuring the shelf lifetime in 60℃ and 90% RH, multilayer-passivated device showed prolonged lifetime compared to inorganic layer-only passivated devices. we also confirmed that VDP polyimides performed well as an organic interlayer for the organic/inorganic multilayer. |
| 저자 |
박세열, 윤원민, 김래호, 박찬언
|
| 소속 |
포항공과대 |
| 키워드 |
OLED; multilayer; passivation; polyimides
|
| E-Mail |
|
