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학술지 Highly Efficient Orange Phosphorescent Organic Light-emitting Diodes with (4-(3,5-dimethylphenyl)-2-(m-tolyl)pyridine)-based Iridium Complex
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저자
전형진, 주철웅, 이다연, Gunel Huseynova, 이재현, 이종희, 김윤희
발행일
202102
출처
Dyes and Pigments, v.186, pp.1-8
ISSN
0143-7208
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.dyepig.2020.109006
협약과제
20HB1400, 디스플레이 일체형 투명 틀렉서블 복합 생체인식 디바이스 핵심기술 개발, 안성덕
초록
© 2020 Elsevier Ltd A new (4-(3,5-dimethylphenyl)-2-(m-tolyl)pyridine)-based iridium complex was synthesized for highly efficient orange phosphorescent organic light-emitting diodes (PhOLEDs). The effect of introduction of a methyl substituent into the 4-position of the phenyl ring in a phenylpyridine chelating ligand was studied. The PhOLEDs based on this newly-synthesized iridium complex exhibited maximum external quantum and current efficiencies of 20.33% and 61.16 cd/A, respectively. These respective values maintained over 15% and 48 cd/A even at a very high luminance of 15000 cd/m2 with Commission Internationale de l'Eclairage coordinates of (0.49, 0.51).
키워드
External quantum efficiency, Iridium complex, Orange emitter, Organic light-emitting diodes, Phosphorescent
KSP 제안 키워드
External Quantum Efficiency, Iridium complexes, Methyl substituent, Organic light-emitting diodes(OLEDS), Phenyl ring, chelating ligand, highly efficient, light-emitting diode(LED), phosphorescent organic light-emitting diodes