화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 가을 (10/06 ~ 10/08, 제주 ICC)
권호 39권 2호
발표분야 2차원 나노소재/고분자 융복합 소재 기술
제목 Extension of air stability in organic light-emitting diodes using MoS2 and WS2 synthesized by chemical vapor deposition method
초록 Transition metal dichalcogenides (TMDCs) were used as a hole transport layer (HTL) in organic light-emitting diodes (OLEDs) and organic photovoltaic (OPVs) cells to enhance the stability in air condition. TMDCs were synthesized by chemical vapor deposition method with (NH4)2MS4 (M = Mo, W) precursor and sulfur power. To modulate the low work function of synthesized TMDCs, the UV-ozone (UV-O3) surface treatment was performed. OLED and OPV devices were fabricated with raw and UV-O3 treated TMDC on indium-tin oxide electrode. Even though the efficiency of TMDC-HTL devices is lower than PEDOT:PSS ones, the TMDC-HTL devices is better than in terms of stability in air properties. These results suggest that the UV-O3 surface treated TMDC could be a promising candidate in application to optoelectronic devices as a hole transport layers. [Acknowledgement] This research was supported by the Center for Green Airport Pavement Technology (CGAPT) of Chung-Ang University.
저자 김수영1, 권기창1, 김철민1, 쿠엣반1, 전종명2, 장호원2
소속 1중앙대, 2서울대
키워드 전이금속 디칼코제나이드; 정공주입층; 유기발광다이오드; 유기태양전지; 소자 수명
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