Enhanced performances of fully solution-processed OLEDs via introducing flexible chains into thermally cross-linked thermally activated delayed fluorescent materials
作者:Jingyi Wei、Dan Liu、Kaiyong Sun、Wenwen Tian、Wei Jiang、Yueming Sun
DOI:10.1016/j.dyepig.2020.108624
日期:2020.11
uniform film morphology. Furthermore, the decreased cross-linking temperature was shown to be advantageous for fabrication of solution-processed OLEDs whose performance was far beyond cross-linked devices based on 3CzCN-DV. This provides a novel method for systematic design of low-temperature cross-linkable luminescent materials, which pave the way for fabrication of fully solution-processed OLEDs that
Endowing TADF luminophors with AIE properties through adjusting flexible dendrons for highly efficient solution-processed nondoped OLEDs
作者:Dan Liu、Jing Yi Wei、Wen Wen Tian、Wei Jiang、Yue Ming Sun、Zheng Zhao、Ben Zhong Tang
DOI:10.1039/d0sc02194f
日期:——
Construction of core–dendron TADF emitters systematically: changing the behaviour of chromophores from aggregation-caused quenching to aggregation induced emission to develop high-performance fully solution-processed nondoped OLEDs.
ORGANIC ELECTROLUMINESCENCE DEVICE AND AROMATIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20210143342A1
公开(公告)日:2021-05-13
An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode and containing an aromatic compound, wherein the aromatic compound includes a benzene ring, two unsubstituted carbazole groups directly bonded to the benzene ring, two substituted carbazole groups directly bonded to the benzene ring and each substituted with a nitrogen-containing ring group, and a substituent directly bonded to the benzene ring and selected from a cyano group, a fluorine, or a C1-C10 alkyl group substituted with a fluorine. The organic electroluminescence device may obtain good luminous efficiency and long life (long lifespan) characteristics while emitting blue light.
申请人:Research & Business Foundation SUNGKYUNKWAN UNIVERSITY 성균관대학교산학협력단(220050013604) BRN ▼101-82-12009
公开号:KR20160139954A
公开(公告)日:2016-12-07
용액 공정을 통해 유기 전계발광소자의 발광층 제조에 이용되는 화합물은 하기 화학식 1로 표시되고, 이때, R은 시아노기이고, R 내지 R는 각각 독립적으로 플루오르(F), 카바졸기 또는 헤테로 링을 나타내되, R 내지 R 중 적어도 어느 하나는 플루오르(F)인 것을 특징으로 한다.[화학식 1]
20% External Quantum Efficiency in Solution-Processed Blue Thermally Activated Delayed Fluorescent Devices
作者:Yong Joo Cho、Byung Doo Chin、Sang Kyu Jeon、Jun Yeob Lee
DOI:10.1002/adfm.201502995
日期:2015.11
Highly efficient solution‐processed bluethermallyactivateddelayedfluorescent (TADF) devices are developed by designing soluble blue TADF emitters. The solubility and emission color could be managed by introducing F as an electron withdrawing unit instead of CN. Two soluble blue TADF emitters are synthesized and show a high externalquantumefficiency of 20.0% with a color coordinate of (0.16,0