Dopant와 Host 물질의 변화에 따른 적색 유기발광다이오드의 특성 분석

• 영문명: Charactenzanon of Red Oigamc Ltght-emittiiiff Diodes with Various Dopant and Host Materials
• 발행기관: 호서대학교 공업기술연구소
• 저자명: 송 묵(Wook Song) 김소인(So In Kim) 이예원(Ye Won Kim) 정윤희(Yoon Hee Jung) 박근주(Geun Joo Park) 고영인(Young In Go) 서보경(Bo Gyung Seo*)김우영(Woo Young Kim) 문창범(Chang Bum Moon)
• 간행물 정보: 『공업기술연구 논문집』제29권 제1호, 121~125쪽, 전체 5쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2010.06.30

영문 초록

Host-dopant system in Organic Light-Emitting Diode(OLED) is used to improve the electrical and optical performance of the device. Red OLED devices were fabricated using MADN and TCTA as the host materials, and rubrene and DCJTB as red dopant materials in the emitting layer. When MADN was used as a host material, luminous efficiency of rubrene doped device and DCJTB doped device were 9.83cd/A and 6.59cd/A which showed a significant difference. However, the red device used TCTA as host material showed luminous efficiency of 4.18cd/A and 4.45cd/A each. In EL spectrum, blue emission peak at 456 nm and red emission peak at 556nm (Rubrene) or 584nm (DCJTB) were appeared with similar intensity because TCTA has low LUMO energy level and high HOMO energy level. Recombination was occurred by direct tunneling of charge from function layers to dopant due to relatively large energy band gap of TCTA.

목차

1. 서 론

2 . 실 험

3. 결과 및 고찰

4. 결 론

키워드

Organic 유기물 Host 주인 Dopant 첨가물 Red 적색 OLED 유기발광다이오드