Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs

doi:10.1002/marc.200800765

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	Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs
	Guo, Xin 1,2; Cheng, Yanxiang 1; Xie, Zhiyuan 1; Geng, Yanhou 1; Wang, Lixiang 1; Jing, Xiabin 1; Wang, Fosong 1
刊名	MACROMOLECULAR RAPID COMMUNICATIONS
	2009-05-19
卷号	30 期号:9-10 页码:816-825
关键词	Blue Light Electroluminescence Energy Transfer Light-emitting Diodes (Led) Luminescence Polyfluorene
ISSN号	1022-1336
DOI	10.1002/marc.200800765
英文摘要	By incorporating a new building block, 7,7,15,15-tetraoctyldinaphtho-s-indacene (NSI), into the backbone of poly(9,9-dioctylfluorene) (PFO), a novel series of blue light-emitting copolymers (PFO-NSI) have been developed. The insertion of the NSI unit into the PFO backbone leads to the increase of local effective conjugation length, to form low-energy fluorene-NSI-fluorene (FNF) segments that serve as exciton trapping sites, to which the energy transfers from the high-energy PFO segments. This causes these copolymers to show red-shifted emissions compared with PFO, with a high efficiency and good color stability and purity. The best device performance with a luminance efficiency of 3.43 cd . A(-1), a maximum brightness of 6 539 cd . m(-2) and CIE coordinates of (0.152, 0.164) was achieved.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000266798800010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/66619]
专题	中国科学院化学研究所
通讯作者	Wang, Lixiang
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xin,Cheng, Yanxiang,Xie, Zhiyuan,et al. Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2009,30(9-10):816-825.
APA	Guo, Xin.,Cheng, Yanxiang.,Xie, Zhiyuan.,Geng, Yanhou.,Wang, Lixiang.,...&Wang, Fosong.(2009).Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs.MACROMOLECULAR RAPID COMMUNICATIONS,30(9-10),816-825.
MLA	Guo, Xin,et al."Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs".MACROMOLECULAR RAPID COMMUNICATIONS 30.9-10(2009):816-825.