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

页码：2303 / 2309

页数：7

共 22 条

[1] Chromophores with strong heterocyclic acceptors: A poled polymer with a large electro-optic coefficient [J].