Fluorene-Based Copolymers Containing Dinaphtho-s-indacene as New Building Blocks for High-Efficiency and Color-Stable Blue LEDs | |
Guo, Xin1,2; Cheng, Yanxiang1; Xie, Zhiyuan1; Geng, Yanhou1; Wang, Lixiang1; Jing, Xiabin1; Wang, Fosong1 | |
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. |
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