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제125회 대한화학회 학술발표회 및 총회 Fluorene–Triphenylamine-Based Bipolar Materials:Fluorescent Emitter and Host for Yellow Phosphorescent OLEDs

등록일
2020년 2월 3일 13시 25분 15초
접수번호
0172
발표코드
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발표시간
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발표형식
포스터
발표분야
Organic Chemistry
저자 및
공동저자
Kyu Yun Chai*, Keunhwa Kim, Han-Su Hwang1,*, Younghee Park*, Subin Oh*, Kanthasamy Raagulan*
Department of Chemistry, Wonkwang University, Korea
1Chemistry, Wonkwang University, Korea
two new bipolar materials were designed and synthesized:N1-(9,9-diphenyl-9H-fluoren-2-yl)-N1-(4,6-diphenylpyrimidin-2-yl)-N4,N4-diphenylbenzene-1,4-diamine (FLU-TPA/PYR) andN1-(4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)-N1-(9,9-diphenyl-9H-fluoren-2-yl)-N4,N4 diphenylbenzene-1,4-diamine (FLU-TPA/TRZ).We fabricated two di erent devices, namely a yellow phosphorescent organic light-emitting diode (PhOLED) and a non-doped fluorescent OLED emitter with both FLU-TPA/PYR and FLU-TPA/TRZ. The FLU-TPA/PYR host-based yellow PhOLED device showed better maximum current, power and external quantum eciencies at 21.70 cd/A, 13.64 lm/W and 7.75%, respectively. The observed eciencies were better than those of the triazine-based FLU-TPA/TRZ. The non-doped fluorescent device with the triazine-based FLU-TPA/TRZ material demonstrated current, power and external quantum eciencies of 10.30 cd/A, 6.47 lm/W and 3.57%, respectively.

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