Large nonlinear optical activity from hybrid inorganic-organic films with fluorinated benzene as isolation group

被引：10
作者：
Liang, Ting [1 ]
Cui, Yuanjing [1 ]
Yu, Jiancan [1 ]
Lin, Wenxin [1 ]
Yang, Yu [1 ]
Qian, Guodong [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
THIN SOLID FILMS | 2013年 / 544卷
基金：
中国国家自然科学基金;
关键词：
Nonlinear optics; Hybrid materials; Sol-gel; Second harmonic generation; Isolation groups; SOL-GEL MATERIALS; CONVENIENT SYNTHESIS; THERMAL-STABILITY; ALKOXYSILANE DYE; CHROMOPHORES; DENDRIMERS; DESIGN; STATE;
D O I：
10.1016/j.tsf.2013.02.090
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two azo chromophores containing fluorinated benzene and alkyl chain as isolation group were designed and synthesized, respectively, and the corresponding alkoxysilane dyes were obtained by coupling 3-isocyanatopropyltriethoxysilane with the chromophores. The molecular structures were verified by elemental analysis, hydrogen nuclear magnetic resonance, and Fourier transform infrared spectrum. Followed by a sol-gel process of the alkoxysilane dyes, inorganic-organic hybrid films were prepared by spin-coating. After electric poling, these hybrid films show the higher nonlinear optical (NLO) response than their analog containing chromophore DR1. Furthermore, the fluorinated benzene group exhibits better enhanced effect than the flexible alkyl group. The highest NLO coefficients (d(33)) of the hybrid film containing fluorinated benzene group was determined to be 140.5 pm V-1 at the chromophore concentration of 40%. (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码：407 / 411
页数：5
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