화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 디스플레이_포스터
제목 Suppressing efficiency roll-off by controlling excited state lifetime in blue thermally activated delayed fluorescence organic light-emitting diodes
초록 To minimize excited state lifetime of blue thermally activated delayed fluorescent materials, we substitute three 9H-carbazole in 2-, 3- and 4- position of phenyl linker. For comparison, we also synthesized 2-, 3-, 5- position and 2-, 4-, 5- position. As a result, 234CzTrz showed the shortest excited state lifetime of 4.1 μs compared with that of others. In device performance, 234CzTrz device showed suppressed efficiency roll-off compared with other devices.
저자 이하림, 이준엽
소속 성균관대
키워드 Blue; Emitter; TADF; OLED
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