Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement

	Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement
	Du XB ; Qi J ; Zhang ZQ ; Ma DG ; Wang ZY
刊名	chemistry of materials
	2012
卷号	24 期号:11 页码:2178-2185
关键词	CONJUGATED POLYMERS DIODES CHROMOPHORES PORPHYRINS STATES DYES
ISSN号	0897-4756
通讯作者	wang zy
中文摘要	a family of donor-acceptor-donor (d-a-d) type near-infrared (nir) fluorophores containing rigid nonplanar conjugated tetraphenylethene (tpe) moieties was designed and synthesized through stifle coupling reactions with electron-deficient [1,2,5]thiadiazolo[3,4-g]quinoxaline (qtd) or benzo[1,2-c;4,5-c']bis[1,2,5]thiadiazole (bbtd) as acceptors. the absorption, fluorescence, and electrochemical properties were studied. these compounds exhibited good aggregation-induced emission enhancement (aiee) property, as a result of the twisted tpe units, which restrict the intramolecular rotation and reduce the pi-pi stacking. photoluminescence of these chromophores ranges from 600 to 1100 nm, and their homo-lumo gaps are between 1.85 and 1.50 ev. non-doped organic light-emitting diodes (oleds) based on these fluorophores were made and exhibited el emission spectra peaking from 706 to 864 nm. the external quantum efficiency (eqe) of these devices ranged from 0.89% to 0.20% and remained fairly constant over a range of current density of 100-300 ma cm(-2). the device with the highest solid fluorescence efficiency emitter la shows the best performance with a maximum radiance of 2917 mw sr-1 m(-2) and eqe of 0.89%. a contrast between nondoped and doped oleds with these materials confirms that aiee compounds are suitable for fabricate efficient nondoped nir oleds.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000305092600026
公开日期	2013-05-20
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48100]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Du XB,Qi J,Zhang ZQ,et al. Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement[J]. chemistry of materials,2012,24(11):2178-2185.
APA	Du XB,Qi J,Zhang ZQ,Ma DG,&Wang ZY.(2012).Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement.chemistry of materials,24(11),2178-2185.
MLA	Du XB,et al."Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement".chemistry of materials 24.11(2012):2178-2185.