Electro-optic property of chromophore-terminated trifunctional dendrimer in a guest-host system

被引：26
|
作者：
Cho, Min Ju
Lee, Sang Kyu
Jin, Jung-Il
Choi, Dong Hoon [1 ]
Dalton, Larry R.
机构：
[1] Korea Univ, Dept Chem, Seoul 136701, South Korea
[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA
来源：
THIN SOLID FILMS | 2006年 / 515卷 / 04期
基金：
美国国家科学基金会;
关键词：
nonlinear optics; electro-optic; phenothiazine; dendrimer; relaxation behavior;
D O I：
10.1016/j.tsf.2006.03.061
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We prepared the new heterocyclic nonlinear optical (NLO) chromophores that show fairly high microscopic nonlinearity through intramolecular charge transfer. Phenothiazine unit played an important role to contribute high electron donability and connect the resonance pathway via conjugative effect in the cyclized ring beside the aromatic ring. Three NLO chromophores were tethered to the aromatic core to synthesize the 1st-generation trifunctional dendrimer. We compared the electro-optic (EO) properties of two samples with single chromophore or trifunctional dendritic chromophore. Real time pole and probe method was employed to investigate the change of the EO signal during poling. EO properties and their relaxation behaviors of the guest-host systems containing synthesized chromophores were thoroughly investigated. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：2303 / 2309
页数：7
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