Preparation of PMMA/SiO<sub>2</sub> composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties

ZHAO Liying; LIU Changsheng; GUAN Jianguo; ZHOU Aijun

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Preparation of PMMA/SiO₂ composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties

更新时间：2025-12-10

- Preparation of PMMA/SiO₂ composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties
- CIESC Journal Issue 4, Pages: 1044-1050(2008)
- 作者机构：
  
  1. 武汉理工大学材料复合新技术国家重点实验室,湖北,武汉,430070
  2. 武汉工程大学材料科学与工程学院,湖北,武汉,430074
  3. 中国科学院合肥物质研究院等离子体物理研究所,安徽,合肥,230031
- 作者简介：
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- Online First：05 April 2008，
  
  Published：05 April 2008
- 稿件说明：
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ZHAO Liying, LIU Changsheng, GUAN Jianguo, et al. Preparation of PMMA/SiO₂ composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties[J]. CIESC Journal, 2008, (4): 1044-1050.
DOI：

ZHAO Liying, LIU Changsheng, GUAN Jianguo, et al. Preparation of PMMA/SiO₂ composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties[J]. CIESC Journal, 2008, (4): 1044-1050. DOI：

摘要

以γ-缩水甘油醚基丙基三甲氧基硅烷(KH-560)为偶联剂，用溶胶-凝胶法合成了含4-(4′-对硝基偶氮苯)-3-氨基-苯胺(DAB)生色团的键合型有机/无机复合非线性光学材料。以掺杂的方式引入表面用AOT修饰的纳米CdS微粒。在160℃、6000 V条件下经电晕电场极化后，只含DABASD的聚合物膜极化后序参数Ф值为0.278，二阶非线性光学系数(d33)值为7.784×10-9esu，含CdS/DABASD的聚合物膜极化后序参数Ф值为0.375，d33值为7.556×10-7esu。在150℃、7000 V条件下经电晕电场极化1h后d33可达8.638×10-7esu。这种有机生色团与无机玻璃键合形成的交联网络结构中，无机玻璃的刚性三维结构能有效抑制NLO生色团的极化松弛。去极化实验结果表明，复合材料的非线性光学性能的常温稳定性好，在100℃放置400 h序参数仍保持初值的95％以上。

Abstract

A new kind of bonded organic/inorganic composite second-order nonlinear optical(NLO) material containing 4-(4′-nitrophenyl-diazenyl)phenyl-1

3-diamine azobenzene (DAB) was synthesized through the sol-gel process by using 3-glycidoxy -propyltrimethoxysilane (KH-560) as coupler agent.The CdS nanoparticles surface-capped with AOT-SO-3［(bis- 2- ethylhexyl)sulfosuccinate］ was doped into the above nanocomposites NLO material.After corona polarization at 160℃ and 6000V for 1 h

with CdS content increasing

the polarized film order parameter increased from 0.278 to 0.375 and second-order NLO coefficient increased from 7.784× 10-9esu to 7.556×10-7esu.After corona polarization of the film at 150℃ and 7000 V for 1 h

the second-order NLO coefficient could reach 8.638×10-7esu according to one dimensional rigid oriented gas model (1DROGM).The three-dimensional networks could restrict the dipole alignment relaxation of NLO chromophores.The results showed that this bonded polymer film had a high NLO capability at room temperature.The order parameter could maintain about 95% of its initial value at 100℃ for 400 h.

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Preparation of PMMA/SiO2 composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties

DOI：

摘要

Abstract

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references

Preparation of PMMA/SiO₂ composite material containing CdS/azo-dye molecules and its second-order nonlinear optical properties