An Alternative Approach to Constructing Solution Processable Multifunctional Materials: Their Structure, Properties, and Application in High-Performance Organic Light-Emitting Diodes

doi:10.1002/adfm.201000474

CORC > 化学研究所 > 中国科学院化学研究所

	An Alternative Approach to Constructing Solution Processable Multifunctional Materials: Their Structure, Properties, and Application in High-Performance Organic Light-Emitting Diodes
	Ye, Shanghui 1,2; Liu, Yunqi 1; Lu, Kun 1; Wu, Weiping 1; Du, Chunyan 1,2; Liu, Ying 1,2; Liu, Hongtao 1,2; Wu, Ti 1,2; Yu, Gui 1
刊名	ADVANCED FUNCTIONAL MATERIALS
	2010-09-23
卷号	20 期号:18 页码:3125-3135
ISSN号	1616-301X
DOI	10.1002/adfm.201000474
英文摘要	A new series of full hydrocarbons, namely 4,4'-(9,9'-(1,3-phenylene) bis(9H-fluorene-9,9-diyl))bis(N,N-diphenylaniline) (DTPAFB), N,N'-(4,4'-(9,9'-(1,3-phenylene)bis(9H-fluorene-9,9-diyl))bis(4,1-phenylene))bis(N-phenylnaphthalen-1-amine) (DNPAFB), 1,3-bis(9-(4-(9H-carbazol-9-yl) phenyl)-9H-fluoren-9-yl)benzene, and 1,3-bis(9-(4-(3,6-di-tert-butyl-9H-carbazol-9-yl)phenyl)-9H-fluoren-9-yl)benzene, featuring a highly twisted tetrahedral conformation, are designed and synthesized. Organic light-emitting diodes (OLEDs) comprising DNPAFB and DTPAFB as hole transporting layers and tris(quinolin-8-yloxy)aluminum as an emitter are made either by vacuum deposition or by solution processing, and show much higher maximum efficiencies than the commonly used N,N'-di(naphthalen-1-yl)-N,N'-diphenylbiphenyl-4,4'-diamine device (3.6 cd A(-1)) of 7.0 cd A(-1) and 6.9 cd A(-1), respectively. In addition, the solution processed blue phosphorescent OLEDs employing the synthesized materials as hosts and iridium (III) bis[(4,6-difluorophenyl)-pyridinato-N, C(2)] picolinate (Flrpic) phosphor as an emitter present exciting results. For example, the DTPAFB device exhibits a brightness of 47 902 cd m(-2), a maximum luminescent efficiency of 24.3 cd A(-1), and a power efficiency of 13.0 lm W(-1). These results show that the devices are among the best solution processable blue phosphorescent OLEDs based on small molecules. Moreover, a new approach to constructing solution processable small molecules is proposed based on rigid and bulky fluorene and carbazole moieties combined in a highly twisted configuration, resulting in excellent solubility as well as chemical miscibility, without the need to introduce any solubilizing group such as an alkyl or alkoxy chain.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000282910000017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/70515]
专题	中国科学院化学研究所
通讯作者	Ye, Shanghui
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Ye, Shanghui,Liu, Yunqi,Lu, Kun,et al. An Alternative Approach to Constructing Solution Processable Multifunctional Materials: Their Structure, Properties, and Application in High-Performance Organic Light-Emitting Diodes[J]. ADVANCED FUNCTIONAL MATERIALS,2010,20(18):3125-3135.
APA	Ye, Shanghui.,Liu, Yunqi.,Lu, Kun.,Wu, Weiping.,Du, Chunyan.,...&Yu, Gui.(2010).An Alternative Approach to Constructing Solution Processable Multifunctional Materials: Their Structure, Properties, and Application in High-Performance Organic Light-Emitting Diodes.ADVANCED FUNCTIONAL MATERIALS,20(18),3125-3135.
MLA	Ye, Shanghui,et al."An Alternative Approach to Constructing Solution Processable Multifunctional Materials: Their Structure, Properties, and Application in High-Performance Organic Light-Emitting Diodes".ADVANCED FUNCTIONAL MATERIALS 20.18(2010):3125-3135.