Synthesis and optical properties of a carbazole-containing novel oligomer

被引：5
|
作者：
Yoon, Kuk Ro
Ko, Seung-O.
Lee, Hoosung [1 ]
机构：
[1] Sogang Univ, Dept Chem, Seoul 121742, South Korea
[2] Hannam Univ, Dept Chem, BK21 Nano Biosensor Res Team, Taejon 305811, South Korea
来源：
SYNTHETIC METALS | 2007年 / 157卷 / 16-17期
关键词：
nonlinear optical (NLO) properties; electro-optic (EO) coefficient; push-pull type oligomer; carbazole; malononitrile;
D O I：
10.1016/j.synthmet.2007.06.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on the synthesis and optical properties of a novel oligomer (oligo(2-{2-but-l-enyl-6-[2-(9-decyl-6-formyl-9H-carbazol-3-yl)-vinyl]-pyran-4-ylidenel}-malononitrile)) (Olg(Cz-Pyr-CN)) with an average degree of polymerization three. The molecule was designed to have push-pull structure and was synthesized by Knovenagel condensation reaction. The resulting Olg(Cz-Pyr-CN) was characterized by means of H-1 NMR spectroscopy and IR spectroscopy. The initial decomposition temperature (T-id) of Olg(Cz-Pyr-CN) appeared at 372 degrees C. The alignment order parameter of the poled Olg(Cz-Pyr-CN) film was 0.31, The electro-optic (EO) coefficients (r(33)) and their NLO properties were evaluated by simple reflection and the Maker fringe method. The EO coefficients of Olg(Cz-Pyr-CN) was found to be 28.7 pm/V at 632.8 nm. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：627 / 631
页数：5
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