Simple CBP isomers with high triplet energies for highly efficient blue electrophosphorescence

doi:10.1039/c1jm14903b

CORC > 化学研究所 > 中国科学院化学研究所

	Simple CBP isomers with high triplet energies for highly efficient blue electrophosphorescence
	Gong, Shaolong 2; He, Xun 2; Chen, Yonghua 1; Jiang, Zuoquan 2; Zhong, Cheng 2; Ma, Dongge 1; Qin, Jingui 2; Yang, Chuluo 2
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2012
卷号	22 期号:7 页码:2894-2899
ISSN号	0959-9428
DOI	10.1039/c1jm14903b
英文摘要	Two simple CBP isomers, namely m-CBP and o-CBP, were designed and synthesized by finely tuning the linking topology between the carbazole and the central biphenyl units of CBP, and their thermal, photophysical and electrochemical properties were investigated. Such simple modification of the linking topology endows the CBP isomers with high triplet energy and relative high thermal and morphological stability. The high triplet energies of m-CBP and o-CBP ensure efficient energy transfer from the host to the phosphor and triplet exciton confinement on the phosphor, as indicated by the transient photoluminescence decay of 3 wt% FIrpic doped into m-CBP and o-CBP. Blue phosphorescent devices employing FIrpic as guest and the two CBP isomers as hosts exhibit high efficiencies. The best EL performance is achieved for the o-CBP-based device, with a maximum current efficiency of 29.9 cd A(-1), and a maximum external quantum efficiency of 14.2%, which are over 2 times higher than those of CBP.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000299504200014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/48153]
专题	中国科学院化学研究所
通讯作者	Ma, Dongge
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Wuhan Univ, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Gong, Shaolong,He, Xun,Chen, Yonghua,et al. Simple CBP isomers with high triplet energies for highly efficient blue electrophosphorescence[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(7):2894-2899.
APA	Gong, Shaolong.,He, Xun.,Chen, Yonghua.,Jiang, Zuoquan.,Zhong, Cheng.,...&Yang, Chuluo.(2012).Simple CBP isomers with high triplet energies for highly efficient blue electrophosphorescence.JOURNAL OF MATERIALS CHEMISTRY,22(7),2894-2899.
MLA	Gong, Shaolong,et al."Simple CBP isomers with high triplet energies for highly efficient blue electrophosphorescence".JOURNAL OF MATERIALS CHEMISTRY 22.7(2012):2894-2899.