Efficient non-doped yellow OLEDs based on thermally activated delayed fluorescence conjugated polymers with an acridine/carbazole donor backbone and triphenyltriazine acceptor pendant

doi:10.1039/c7tc04994c

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	Efficient non-doped yellow OLEDs based on thermally activated delayed fluorescence conjugated polymers with an acridine/carbazole donor backbone and triphenyltriazine acceptor pendant
	Wang, Yanjie 1,2; Zhu, Yunhui 1,2; Lin, Xingdong 1; Yang, Yike 1,2; Zhang, Baohua 1; Zhan, Hongmei 1; Xie, Zhiyuan 1; Cheng, Yanxiang 1
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2018-01-21
卷号	6 期号:3 页码:568-574
ISSN号	2050-7526
DOI	10.1039/c7tc04994c
英文摘要	Polymers with thermally activated delayed fluorescence (TADF) are very suitable and promising emitters for use in solution-processed organic light-emitting diodes (OLEDs). However, only a few efficient TADF polymers have been reported to date. In this work, a series of polymers with acridine/carbazole donor backbones and triphenyltriazine acceptor pendant are synthesized. The polymers show remarkable TADF due to the intrinsic twisted donor/acceptor structure derived from the copolymerization monomer and have a high photoluminescence quantum yield of up to 90%, in neat films, through management of the monomer ratios. Non-doped OLEDs based on the polymers display a yellow emission and achieve maximum external quantum and power efficiencies of up to 15.5% and 50.5 lm W-1. More importantly, the non-doped devices possess low turn-on and driving voltages of 2.53 V and 4.05 V (1000 cd m(-2)) with an extremely small efficiency roll-off of as low as 0.5%. Compared with doped devices, non-doped devices exhibit superior electroluminescent performances, with similar efficiencies but a lower efficiency roll-off and driving voltage, verifying that the designed conjugated polymers are superior emitters for non-doped TADF OLEDs by simple solution-processing.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000423305000017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45459]
专题	中国科学院化学研究所
通讯作者	Zhang, Baohua; Cheng, Yanxiang
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yanjie,Zhu, Yunhui,Lin, Xingdong,et al. Efficient non-doped yellow OLEDs based on thermally activated delayed fluorescence conjugated polymers with an acridine/carbazole donor backbone and triphenyltriazine acceptor pendant[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(3):568-574.
APA	Wang, Yanjie.,Zhu, Yunhui.,Lin, Xingdong.,Yang, Yike.,Zhang, Baohua.,...&Cheng, Yanxiang.(2018).Efficient non-doped yellow OLEDs based on thermally activated delayed fluorescence conjugated polymers with an acridine/carbazole donor backbone and triphenyltriazine acceptor pendant.JOURNAL OF MATERIALS CHEMISTRY C,6(3),568-574.
MLA	Wang, Yanjie,et al."Efficient non-doped yellow OLEDs based on thermally activated delayed fluorescence conjugated polymers with an acridine/carbazole donor backbone and triphenyltriazine acceptor pendant".JOURNAL OF MATERIALS CHEMISTRY C 6.3(2018):568-574.