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题名: Synthesis of asymmetric dendrimers with controllable chromophore concentration and improved electro-optical performance
作者: Xu, Huajun1, 2; Fu, Mingkai2, 3; Bo, Shuhui1; Liu, Xinhou1
刊名: RSC ADVANCES
发表日期: 2016
卷: 6, 期:30, 页:25023-25027
收录类别: SCI
英文摘要: In this work, we firstly provided a simple work-up procedure to prepare a new kind of electro-optical dendrimer with an asymmetric configuration via a Cu-(I) catalyzed Huisgen-reaction. The resulting NLO dendrimers exhibited both good thermal stability and good film-forming ability. In order to investigate the influence of the asymmetric configuration on the electro-optic (EO) activities, UV-vis spectra, density functional theory (DFT) calculations and EO performance were studied. Due to their asymmetric spherical structure, two dendrimers showed weak dipole-dipole aggregation compared with traditional dendritic electro-optical materials (DESD), but they achieved better alignment after each poling process was carried out. As expected, HJ-2 exhibited 41 pm V-1 in an EO coefficient test, which was higher than DESD and the guest-host polymeric system (C2 + PMMA) using the same chromophores.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35966
Appears in Collections:其它_期刊论文

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作者单位: 1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100043, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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