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Highly efficient blue organic light-emitting diodes from pyrimidine-based thermally activated delayed fluorescence emitters
Li, Bowen; Li, Zhiyi; Hu, Taiping; Zhang, Yong; Wang, Ying; Yi, Yuanping; Guo, Fengyun; Zhao, Liancheng
MAR 7 2018
Source PublicationJOURNAL OF MATERIALS CHEMISTRY C
Volume6Issue:9Pages:2351-2359
AbstractThree highly efficient blue thermally activated delayed fluorescence (TADF) emitters, 2SPAc-HPM, 2SPAc-MPM and 2SPAc-PPM, have been synthesised based on pyrimidine (PM), 2-methylpyrimidine (MPM) and 2-phenylpyrimidine (PPM) as the acceptor and 10H-spiro[acridan-9,9-fluorene] (2SPAc) as the donor moiety. With their appropriate molecular design, these emitters successfully achieve small singlet-triplet splitting energies for efficient reverse intersystem crossing, and exhibit high photoluminescence quantum yields. As a result, TADF OLEDs based on 2SPAc-HPM, 2SPAc-MPM and 2SPAc-PPM emit blue light peaking at 479-489 nm and generate very high external quantum efficiencies of 25.56%, 24.34% and 31.45%, respectively. The 2SPAc-PPM-based TADF OLED is also one of the very few blue TADF emitters with an external quantum efficiency of more than 30%, and it has the best OLED performance among the pyrimidine-based TADF emitters.
WOS IDWOS:000426705400022
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/38719
Collection其它
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GB/T 7714
Li, Bowen,Li, Zhiyi,Hu, Taiping,et al. Highly efficient blue organic light-emitting diodes from pyrimidine-based thermally activated delayed fluorescence emitters[J]. JOURNAL OF MATERIALS CHEMISTRY C,MAR ,6(9):2351-2359.
APA Li, Bowen.,Li, Zhiyi.,Hu, Taiping.,Zhang, Yong.,Wang, Ying.,...&Zhao, Liancheng.(MAR ).Highly efficient blue organic light-emitting diodes from pyrimidine-based thermally activated delayed fluorescence emitters.JOURNAL OF MATERIALS CHEMISTRY C,6(9),2351-2359.
MLA Li, Bowen,et al."Highly efficient blue organic light-emitting diodes from pyrimidine-based thermally activated delayed fluorescence emitters".JOURNAL OF MATERIALS CHEMISTRY C 6.9(MAR ):2351-2359.
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