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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Third-Order Nonlinear Optical Properties of Layered Type Hybridized Thin Films Consisting of Oriented Polydiacetylene Nanofibers and Silver Nanoparticles
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Third-Order Nonlinear Optical Properties of Layered Type Hybridized Thin Films Consisting of Oriented Polydiacetylene Nanofibers and Silver Nanoparticles

机译：三阶非线性光学性能的分层式杂交薄膜，由取向多迪亚乙烯纳米纤维和银纳米粒子组成

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摘要

Layered type hybridized thin films, which were composed of oriented polydiacetylene (PDA) nanofibers (NFs) and silver (Ag) nanoparticles (NPs), have been fabricated successfully by means of the alternative processes of the layer-by-layer (LbL) method and the convective assembly method. The wavelength dispersion of third-order nonlinear optical (NLO) susceptibility, chi((3))(omega), and the corresponding figure of merit (FOM) have been evaluated correctly by the combined analysis with femtosecond pump-probe spectroscopy and spectroscopic ellipsometry. It has become apparent that both chi((3))(omega) and FOM were enhanced evidently in the layered type hybridized thin films under the optimized condition of a suitably adsorbed amount of Ag NPs, compared with random thin films of PDA NFs and/or oriented thin films of PDA NFs, because of the localized surface plasmon resonance (LSPR) effect from Ag NPs as well as the orientation effect of PDA NFs. This would provide a new design guide for organic NLO hybrid nanomaterials toward photonic device applications.
机译：通过层逐层（LBL）方法的替代方法成功地制造了由取向的多二乙炔（PDA）纳米纤维（NFS）和银（Ag）纳米颗粒（NPS）构成的层状杂交薄膜。和对流组装方法。通过Femtosecond泵探针光谱和光谱椭圆形测定法正确分析正确地评估了三阶非线性光学（NLO）敏感性，CHI（（3））和相应的优异价格（FOM）的波长分散，以及对应的优点（FOM） 。显然，与PDA NFS的随机薄膜相比，CHI（（3））和FOM在层状杂交薄膜中显然，在层状型杂交薄膜中显然，在适当吸附量的Ag NP的优化条件下。和/或取向PDA NFS的薄膜，因为局部表面等离子体共振（LSPR）效应于AG NPS以及PDA NFS的取向效果。这将为光子器件应用提供有机NLO杂交纳米材料的新设计指南。

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