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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A two-step surface modification approach for Au and CdS NPs loaded mesoporous thin films and the greatly enhanced optical nonlinearity
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A two-step surface modification approach for Au and CdS NPs loaded mesoporous thin films and the greatly enhanced optical nonlinearity

机译:Au和CdS NPs介孔薄膜的两步表面改性方法和大大增强的光学非线性

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摘要

A new two-step surface modification approach has been developed for the incorporation of both CdS and Au NPs into the pore channels of silica mesoporous thin films. The composite thin films were investigated by FTIR, UV-vis, XRD and SEM, the results confirmed that the semiconductor and metal NPs were successfully incorporated with uniform particle size and high dispersivity thanks to the confinement effect of mesoporous thin films. The nonlinear optical susceptibility was measured by the Z-scan technique. The synthesized multi-component nanoparticles embedded films demonstrated a greatly enhanced nonlinear optical property which can be mainly attributed to the energy transfer between CdS and Au.
机译:已经开发出一种新的两步表面改性方法,用于将CdS和Au NPs掺入二氧化硅介孔薄膜的孔道中。通过FTIR,UV-vis,XRD和SEM对复合薄膜进行了研究,结果表明,由于介孔薄膜的局限作用,成功地以均匀的粒径和高分散性掺入了半导体和金属NP。非线性光学敏感性通过Z扫描技术测量。合成的多组分纳米粒子包埋膜表现出大大增强的非线性光学性质,这主要归因于CdS和Au之间的能量转移。

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