이종 전극에 의한 OLED 전기적 특성 연구

• 영문명: Electrical Characteristics of OLED using the Hetero-Electrode
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 이정호(Lee JungHo) 서정하(Suh ChungHa) 정지훈(Jeong JiHoon) 김영관(Kim YoungKwan) 김영식(Kim YoungSik) 김영찬(Kim YeoungChan)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제21권 제4호, 274~278쪽, 전체 5쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2004.12.31

영문 초록

In this study, hetero-electrode structures have been fabricated to increase luminescence efficiency. The presence of a thin layer of Sn or Ag at the organic-aluminum interface enhanced both electron injection efficiency and electroluminescence when compared to OLEDs using homogeneous electrode. In this paper, the effect of the cathode using Sn/Al hetero electrode structure is observed. Electric properties of the OLED using Sn/Al hetero cathode are improved in comparison of only Al cathode. The hetero-electrode existing different energy level induces the advanced structure of OLED can accumulate electron density. The luminescence efficiency of OLED with Sn/Al of Ag/Al cathode is higher because of their higher electron injection efficiency. And, the turn on voltage of the OLED device using Sn thin layer is lowest as about 10 V.

키워드

OLED organic light-emitting diode hetero-electrode