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An alternative approach to constructing solution processable multifunctional materials: their structure, properties, and application in high-performance organic light-emitting diodes

文献类型：期刊论文

作者Ye, Shanghui1,2; Liu, Yunqi1; Lu, Kun1; Wu, Weiping1; Du, Chunyan1,2; Liu, Ying1,2; Liu, Hongtao1,2; Wu, Ti1,2; Yu, Gui1
刊名Advanced functional materials
出版日期2010-09-23
卷号20期号:18页码:3125-3135
ISSN号1616-301X
DOI10.1002/adfm.201000474
通讯作者Ye, shanghui()
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.
WOS关键词TRIPHENYLAMINE-BENZIMIDAZOLE DERIVATIVES ; BLUE PHOSPHORESCENT OLEDS ; HOST MATERIAL ; ELECTROPHOSPHORESCENT DEVICES ; SINGLE-LAYER ; CARBAZOLE COMPOUNDS ; TRIPLET EMITTERS ; EFFICIENT GREEN ; DENDRIMERS ; MOLECULES
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
语种英语
WOS记录号WOS:000282910000017
出版者WILEY-V C H VERLAG GMBH
URI标识http://www.irgrid.ac.cn/handle/1471x/2413250
专题中国科学院大学
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.

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