| SiO2@CdTe@Au复合纳米粒子的制备与非线性吸收特性 |
| Preparation and Nonlinear Absorption Properties of SiO2@CdTe@Au Composite Nanoparticles |
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| 摘要: 应用SiO2纳米粒子、CdTe量子点和Au纳米粒子，采用逐层吸附法制备SiO2@CdTe@Au纳米复合材料。同时对样品进行了测试和表征，从多个方面证明纳米复合材料成功制备。利用Z扫描技术测量了SiO2@CdTe和SiO2@CdTe@Au纳米复合材料在纳秒激光脉冲作用下的非线性吸收光学特性。实验结果表明：SiO2@CdTe和SiO2@CdTe@Au纳米复合材料均表现出饱和吸收特性。SiO2@CdTe@Au较SiO2@CdTe纳米复合材料具有更强的非线性光学特性，并对其机理进行了分析。 |
| 关键词: SiO2@CdTe@Au 复合纳米粒子 Z扫描 非线性吸收 |
| 基金项目: 国家自然科学基金（No.51372072）资助。 |
| Abstract: SiO2@CdTe@Au nanocomposites were prepared by using SiO2 nanoparticles, CdTe quantum dots and Au nanoparticles as raw materials by layer-by-layer adsorption. The samples were tested and characterized to show the successful preparation of nanocomposites. The Z-scan technique was used to measure the nonlinear absorption optical properties of SiO2@CdTe and SiO2@CdTe@Au nanocomposite samples under nanosecond laser pulses. The analysis of the experimental results showed that SiO2@CdTe and SiO2@CdTe@Au nanocomposites all exhibited saturated absorption properties. SiO2@CdTe@Au nanocomposite presented enhanced nonlinear optical characteristics compared to SiO2@CdTe nanocomposite, and the mechanism was analyzed. |
| Keywords: SiO2@CdTe@Au composite nanoparticles Z-scan nonlinear absorption |
| 投稿时间：2021-02-01 修订日期：2021-07-18 |
| 摘要点击次数: 564 |
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| 常青,管静,孟天明.SiO2@CdTe@Au复合纳米粒子的制备与非线性吸收特性[J].无机化学学报,2021,37(9):1683-1690. |
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