Non-Doped Deep Blue and Doped White Electroluminescence Devices Based on   Phenanthroimidazole Derivative

doi:10.1007/s10895-016-1970-5

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	Non-Doped Deep Blue and Doped White Electroluminescence Devices Based on Phenanthroimidazole Derivative
	Chen, Shuo ; Wu, Yukun ; Hu, Shoucheng ; Zhao, Yi ; Fang, Daining
刊名	JOURNAL OF FLUORESCENCE
	2017
关键词	OLEDs Phenanthroimidazole derivative Bipolar Non-doped deep blue Doped white LIGHT-EMITTING-DIODES AGGREGATION-INDUCED EMISSION DELAYED FLUORESCENT DEVICES HIGHLY EFFICIENT QUANTUM EFFICIENCY HOST MATERIALS EXCITED-STATE PERFORMANCE EMITTERS BIPOLAR
DOI	10.1007/s10895-016-1970-5
英文摘要	A novel deep-blue emitter PhImPOTD based on phenathroimidazole was synthesized, which is incorporated by an electron-donating dibenzothiophene unit and electron-withdrawing phenanthroimidazole and diphenylphosphine oxide moieties. Furthermore, the weak pi-pi stacking and intermolecular aggregation render the photoluminescence quantum yield is as high as 0.34 in the solid state. Non-doped organic light emitting diodes (OLEDs) based on PhImPOTD emitter exhibits a low turn-on voltage of 3.6 V, a favorable efficiency of 1.13 cd A(-1) and a deep blue emission with Commission Internationale de l'Eclairage (CIE) coordinates of (0.15, 0.08). The CIE is very close to the NTSC (National Television Standards Committe) blue standard (CIE: 0.14, 0.08). PhImPOTD is also utilized as blue emitter and the host for a yellow emitter (PO-01) to fabricate white organic light-emitting diodes (WOLEDs). This gives a forward-viewing maximum CE of 4.83 cd A(-1) and CIE coordinates of (0.32, 0.32) at the luminance of 1000 cd m(-2). Moreover, the single-carrier devices unambiguously demonstrate that typical bipolar-dominant characteristics of PhImPOTD. This work demonstrates not only that the phenanthroimidazole unit is an excellent building block to construct deep blue emission materials, but also the introduction of a diphenylphosphine oxide deprotonation substituent is an efficient tactic for harvesting deep-blue emitting devices.; National Natural Science Foundation of China [111572002]; Foundation for Innovative Research Groups of the National Natural Science Foundation of China [11521202]; SCI(E); ARTICLE; 2; 451-461; 27
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474899]
专题	工学院
推荐引用方式 GB/T 7714	Chen, Shuo,Wu, Yukun,Hu, Shoucheng,et al. Non-Doped Deep Blue and Doped White Electroluminescence Devices Based on Phenanthroimidazole Derivative[J]. JOURNAL OF FLUORESCENCE,2017.
APA	Chen, Shuo,Wu, Yukun,Hu, Shoucheng,Zhao, Yi,&Fang, Daining.(2017).Non-Doped Deep Blue and Doped White Electroluminescence Devices Based on Phenanthroimidazole Derivative.JOURNAL OF FLUORESCENCE.
MLA	Chen, Shuo,et al."Non-Doped Deep Blue and Doped White Electroluminescence Devices Based on Phenanthroimidazole Derivative".JOURNAL OF FLUORESCENCE (2017).