논문 해외 국제전문학술지(SCI급) Highly efficient solution-processed blue organic light-emitting diodes based on thermally activated delayed fluorescence emitters with spiroacridine donor
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2019-10
- 저자명 이재현,이종희,Chul Woong Joo,Jiang Yifei,Yong Hyun Kim,Nam Sung Cho,Yun-Hi Kim,HUSEYNOVA GUNEL,유재민
- 학술지명 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- 발행처명 ELSEVIER SCIENCE INC
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 9
홈페이지논문 초록 (Abstract)
High-efficiency solution-processed blue organic light-emitting diodes (OLEDs) were developed using two thermally activated delayed fluorescence (TADF) aromatic molecules, 10-(4-(4,6-diphenyl-1,3,5-triazin-2-yl)-2,5-dimethylphenyl)-10H-spiro[acridine-9,9-fluorene] (TXSA) and 10-(4-(4,6-diphenyl-1,3,5-triazin-2-yl)-2-methylphenyl)-10H-spiro[acridine-9,9-fluorene] (TTSA), composed of spiroacridine donor and triazine acceptor units. As a result, the blue devices based on two novel TADF molecules exhibited remarkable electroluminescence with a high quantum efficiency of 14.94% and current efficiency of 29.29 cd/A by optimization of emitter doping concentration and properties of the electron transporting layer. Our results demonstrate that TXSA and TTSA TADF molecules are prospective materials to fabricate high-performance solution-processed blue OLEDs with a simple device structure. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.