OLED 내구성에 미치는 무기/에폭시층 보호막의 영향

다국어 초록 (Multilingual Abstract)

The passivation films with epoxy layer on LiF, SiNx and LiF/SiNx inorganic layer were fabricated on OLED to protect device from the direct damage of O₂ and H₂O and to apply for a buffer layer between OLED device and passivation multi-layer with organic/inorganic hybrid structure as to diminish the thermal stress and expansion. Red OLED doped with 1 vol.% Rubrene in Alq₃ was used as a basic device. The device structure was multi-layer of ITO(150 ㎚) / ELM200_HIL(50 ㎚) / ELM002_HTL(30 ㎚) / Alq₃: 1 vol.% Rubrene(30 ㎚) / Alq₃(30 ㎚) / LiF(0.7 ㎚) / Al(100 ㎚). LiF/epoxy applied as a protective layer didn't contribute to the improvement of life time. While in case of SiNx/epoxy, damage was done in the passivation process because of difference in heat expansion between films which could occur during the formation of epoxy film. Using LiF/SiNx/epoxy improved lifetime significantly without suffering damage in the process of forming films, therefore, the best structure of passivation film with inorganic/epoxy layers was LiF/SiNx/E1.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험 방법
• 3. 결과
• 4. 결론
• 후기
• 참고문헌

참고문헌 (Reference)

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10 Shizuo Tokito, "유기EL 디스플레이 기초와 응용" 성안당 192-, 2006

11 김종환, "고분자 기판위에 다층 구조의 박막형 보호층을 적용한 투습률 향상" 한국전기전자재료학회 19 (19): 255-259, 2006

12 주성후, "SiNx 박막에 의한 OLED 소자의 보호막 특성" 한국전기전자재료학회 19 (19): 758-763, 2006