화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 37권 2호
발표분야 분자전자 부문위원회
제목 Synthesis, Characterization and Comparison Study of the Phenylquinoline-based on Iridium(III) Complexes for Solution Processable Phosphorescent Organic Light-Emitting Diodes by PEDOT:PSS and Graphene Oxide as a Hole Transport Layer.
초록 A new series of highly efficient Ir(III) complexes, (DPQ)2Ir(pic-N-O), (F4PPQ)2Ir(pic-N-O), (FPQ)2Ir(pic-N-O), and (CPQ)2Ir(pic-N-O) were synthesized for phosphorescent organic light-emitting diodes (PhOLEDs), and their photophysical, electrochemical, and electroluminescent (EL) properties were investigated using PEDOT:PSS and reduced graphene oxide (rGO) as a hole transport layer. Remarkably, high performance solution processable PhOLEDs with PEDOT:PSS were fabricated using (DPQ)2Ir(pic-N-O) doped CBP host emission layer gave a high luminance efficiency (LE) of 26.9 cd/A corresponding to an external quantum efficiency (EQE) of 14.2 %. For PhOLED with rGO as a hole transport layer, the maximum brightness and LE exhibited 13540 cd/m2 and 16.8 cd/A. The utilization of the solution processable rGO thin film as the hole transport layer offered the great potential of being compatible with the fabrication of solution processable PhOLEDs.
저자 안성광1, N.S.S.CHAKRAVARTHI1, K.KRANTHIRAJA1, 제갈영순2, 이재욱3, 진성호1
소속 1부산대, 2경일대, 3동아대
키워드 OLED; Graphene oxide; Iridium(III) complex; solution-processed
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