Synthesis and characterization of novel AZO chromophore with multi hydroxyl groups

文献类型： 外文期刊

第一作者： Zhou, Jian

作者： Zhou, Jian;Wang, Min;Yang, Hui;Li, Xiaobing

作者机构：

期刊名称：JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS （ 影响因子：2.478； 五年影响因子：2.171 ）

ISSN： 0957-4522

年卷期： 2016 年 27 卷 3 期

页码：

收录情况： SCI

摘要： Novel organic second order nonlinear optical chromophore with 4,4'-(5-(bis(2-hydroxyethyl)amino)-1,3-phenylene)bis(oxy)dibutan-1-ol as electron donor and azo thiophene as pi-electronic bridge was synthesized and characterized by H-1 NMR spectra and mass spectra. After the introduction of four hydroxyl groups to the electron donor, the solubility of chromophore Z1 in water was improved greatly (0.5 g). Else, the solubility of chromophore Z1 in common organic solvents was still very good. The thermal decomposition temperature was above 250 degrees C, which was high enough for its application in both the preparation of optoelectronic devices and Second harmonic generation imaging. Electro-optical films prepared by chromophore Z1 showed us the largest second-order nonlinear optical coefficient was about 85 pm/V, which was large enough for the detection of second harmonic generation signal in water solution. Else, the photochemical stability of chromophore Z1 was also studied; the advantage of chromophore with azo bond was very obvious for improving the photochemical stability of organic second order nonlinear optical chromophores.

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