An X-shaped π-conjugated polymer comprising of fluorene units and anthracene units with high efficiency.: Synthesis and optical and electrochemical properties

被引：21
作者：
Sun, Jing [1 ,2 ]
Cheng, Jian-Gong [3 ]
Zhu, Wen-Qing [4 ]
Ren, Shi-Jie [1 ,2 ]
Zhong, Hong-Liang [1 ,2 ]
Zeng, Dan-Li [1 ,2 ]
Du, Jun-Ping [1 ,2 ]
Xu, Er-Jian [1 ,2 ]
Liu, Ying-Chun [1 ,2 ]
Fang, Qiang [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Organ Chem, Lab Polymer Mat, Shanghai 200032, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Organ Chem, Key Lab Organofluorine Chem, Shanghai 200032, Peoples R China
[3] Chinese Acad Sci, SIMIT, Shanghai 200050, Peoples R China
[4] Shanghai Univ, Minst Educ, Key Lab Adv Display & Syst Applicat, Shanghai 200072, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2008年 / 46卷 / 16期
基金：
中国国家自然科学基金;
关键词：
anthracene derivatives; conjugated polymers; copolymerization; electrochemistry; fluorene derivatives; fluorescence; light-emitting diodes (LED); luminescent; optics; photochemistry;
D O I：
10.1002/pola.22883
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A new X-shaped pi-conjugated monomer comprising of fluorene units and anthracene units was synthesized, and it was used to fabricate the new X-shaped pi-conjugated polymers and investigate the properties of the new polymers. Using different molar ratios between such monomer and a fluorene monomer gave three polymers that showed higher absolute PL quantum yields than the linear polyfluorene (PF) in the solid state. After thermal annealing at 200 degrees C for 4 h, the linear PF showed an additional bathochromic emission at about 550 nm, whereas such red-shifted emission was fully eliminated for the X-shaped polymers. The electroluminescent devices based on the X-shaped polymers with a configuration of ITO/PEDOT:PSS/polymer/LiF/Ca/Al displayed blue emission with low turn-on voltage and high brightness. (C) 2008 Wiley Periodicals, Inc.
引用
收藏
页码：5616 / 5625
页数：10
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