Ternary donor-acceptor phosphine oxide hosts with peculiar high energy gap for efficient blue electroluminescence

	Ternary donor-acceptor phosphine oxide hosts with peculiar high energy gap for efficient blue electroluminescence
	Sun, Mingzhi 1; Zhu, Liping 2; Kan, Wenjing 1; Wei, Ying 1,3; Ma, Dongge 2; Fan, Xuefeng 2; Huang, Wei 3; Xu, Hui 1,3
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2015
卷号	3 期号:36 页码:9469-9478
英文摘要	Ternary donor (D)-acceptor (A)-acceptor (A) molecules are commonly considered as low triplet (T-1) energy systems for specific applications. In this work, exception to this behavior was observed in a triangle-shaped D-A-A molecule PCImbPO with unusually high triplet energy of 3.0 eV. Profiting from the enhanced D-A electronic coupling, electron injecting and transporting ability of PCImbPO was dramatically improved with negligible influences on its highest occupied molecular orbital (HOMO) characteristics. Its particular T-1 configuration adjustment further gives rise to the separated frontier MO and T-1 locations, beneficial to suppress quenching effects. By utilizing PCImbPO as host in blue phosphorescent organic light-emitting diodes (PHOLEDs) and thermally activated delayed fluorescence devices, impressively high external quantum efficiency of 22% and 12% were achieved, respectively. This work established a new understanding of high-energy-gap complicated D-A systems.
收录类别	SCI
语种	英语
公开日期	2015-11-03
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28397]
专题	化学研究所_高分子物理与化学实验室
作者单位	1.Heilongjiang Univ, Sch Chem & Mat, Minist Educ, Key Lab Funct Inorgan Mat Chem, Harbin 150080, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Nanjing Tech Univ, Nanjing Tech, Inst Adv Mat, Nanjing 211800, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Sun, Mingzhi,Zhu, Liping,Kan, Wenjing,et al. Ternary donor-acceptor phosphine oxide hosts with peculiar high energy gap for efficient blue electroluminescence[J]. JOURNAL OF MATERIALS CHEMISTRY C,2015,3(36):9469-9478.
APA	Sun, Mingzhi.,Zhu, Liping.,Kan, Wenjing.,Wei, Ying.,Ma, Dongge.,...&Xu, Hui.(2015).Ternary donor-acceptor phosphine oxide hosts with peculiar high energy gap for efficient blue electroluminescence.JOURNAL OF MATERIALS CHEMISTRY C,3(36),9469-9478.
MLA	Sun, Mingzhi,et al."Ternary donor-acceptor phosphine oxide hosts with peculiar high energy gap for efficient blue electroluminescence".JOURNAL OF MATERIALS CHEMISTRY C 3.36(2015):9469-9478.