논문 해외 국제전문학술지(SCI급) Efficient solution processed hybrid white organic light-emitting diodes based on a blue thermally activated delayed fluorescence emitter
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-02
- 저자명 이재현,Joo, CW (Joo, Chul Woong),HUSEYNOVA GUNEL,Kim, JH (Kim, Ji Hye),유재민,Kim, YH (Kim, Yong Hyun),Cho, NS (Cho, Nam Sung),Kim, YH (Kim, Yun-Hi),이종희
- 학술지명 THIN SOLID FILMS
- 발행처명 ELSEVIER SCIENCE SA
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 9
홈페이지논문 초록 (Abstract)
A solution-processed blue thermally activated delayed fluorescence (TADF) aromatic molecule has been introduced to realize high-efficiency hybrid white organic light-emitting diodes (WOLEDs) with very simple structure which contains only three organic layers of hole injection layer, emissive layer (EML), and electron transporting layer. 1,3-Bis(N-carbazolyl)benzene doped with the blue TADF molecule 10-(4-(4,6-diphenyl 1,3,5 triazin-2-yl)-2-methylphenyl)-10H-spiro[acridine-9,9-fluorene] was mixed with a red phosphorescent emitter, bis(2-methyldibenzo [th]quinoxaline) (acetylacetonate) iridium(III) to form a blue-red fluorescent-phosphorescent hybrid EML. The resultant hybrid EML was applied to construct a solution-processed WOLEDs. Hence, a maximum external quantum efficiency of 11.02% and current efficiency of 22.46 cd/A with the Commission Internationale de LEclairage coordinates of (0.43, 0.40) were achieved by co-doping of blue and red emitters in a single layer.