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The effect of peripheral substituents attached to phthalocyanines on the third order nonlinear optical properties of graphene oxide-zinc(II) phthalocyanine hybrids

机译：邻苯基酞菁附着于酞菁的外周取代基的影响 - 氧化锌（II）酞菁杂交物的三阶非线性光学性质

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摘要

Two kinds of graphene oxide-zinc phthalocyanine (GO-ZnPc) hybrid materials have been prepared by the covalent functionalization method. The morphologies and structures of the two kinds of GO-ZnPc hybrids are characterized by a series of methods, such as scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared, ultraviolet-visible absorption and fluorescence spectroscopies. From the fluorescence spectra, the two kinds of GO-ZnPc hybrids display strong fluorescence quenching by the photo-induced electron transfer (PET) process from ZnPc moieties to the GO. Energy diagrams show that a PET process from ZnPc molecules to GO nanosheets exists. The third order nonlinear optical (NLO) properties of GO-ZnPc hybrids are investigated by the Z- scan technique at 532 nm with 4 ns laser pulses. The nonlinear absorption coefficient β value of GO- ZnPc(DG)4 is larger than that of GO-ZnPc(TD)4 because GO-ZnPc(DG)4 possesses peripheral substituents with a stronger electron-donating effect compared to GO-ZnPc(TD)4.
机译：通过共价官能化方法制备了两种石墨烯氧化物 - 锌酞菁（Go-ZnPC）杂化材料。两种Go-ZnPC杂种的形态和结构的特征在于一系列方法，例如扫描电子显微镜，原子力显微镜，X射线光电子能谱，傅里叶变换红外，紫外线可见吸收和荧光光谱。从荧光光谱，两种Go-ZnPC杂交物通过从ZnPC部分到Go的光诱导的电子转移（PET）工艺显示强荧光猝灭。能量图表明，来自ZnPC分子的宠物进程存在纳米液。通过Z-扫描技术在532nm下，用4 ns激光脉冲来研究Go-ZnPC混合物的三阶非线性光学（NLO）性能。 Go-ZnPC（DG）4的非线性吸收系数β值大于Go-ZnPC（Td）4，因为Go-ZnPC（DG）4与Go-ZnPC相比具有更强的电子捐赠效果的外周取代基（ TD）4。

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  • 来源
    《RSC Advances》 |2015年第114期|共11页
  • 作者

    Zhao Wang; Chunying He; Weina Song;

  • 作者单位

    Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Science Heilongjiang University Harbin 150080 PR China.;

    Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Science Heilongjiang University Harbin 150080 PR China.;

    Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Science Heilongjiang University Harbin 150080 PR China.;

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  • 正文语种 eng
  • 中图分类 化学;
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