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首页> 外文期刊>Journal of Materials Research >Surface-enhanced Raman scattering from rhodamine 6G on gold-coated self-organized silicon nanopyramidal array
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Surface-enhanced Raman scattering from rhodamine 6G on gold-coated self-organized silicon nanopyramidal array

机译：罗丹明6G在金包覆的自组织硅纳米锥阵列上的表面增强拉曼散射

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摘要

This work reports the gold-coated self-organized silicon nanopyramidal array prepared by a wet etching and magnetron sputtering process at room temperature. Scanning electron microscopy was used to detect the morphology of gold films. The surface-enhanced Raman scattering (SERS) spectra of the rhodamine 6G (R6G) molecules adsorbed on a nanoscale gold film were recorded. Experimental results show the relationships between gold film thickness and SERS intensity. A full three-dimensional finite difference time domain calculations were carried out, which compare the experimental results and show agreement with ratios of the SERS enhancement for the different thicknesses of gold films. Furthermore, numerical simulations of the array were conducted for both a real gold metal coating and a perfect electrical conductor to determine whether the SERS enhancement was due to diffraction or plasmonic effects. The sample with the fast fabrication process used in this work could provide a new way to obtain a uniform enhancement and low cost SERS substrate.
机译：这项工作报告了在室温下通过湿法蚀刻和磁控溅射工艺制备的镀金的自组织硅纳米锥阵列。扫描电子显微镜用于检测金膜的形态。记录了吸附在纳米金膜上的若丹明6G（R6G）分子的表面增强拉曼散射（SERS）光谱。实验结果表明金膜厚度与SERS强度之间的关系。进行了完整的三维有限时域时域计算，比较了实验结果并显示了不同金膜厚度下SERS增强比的一致性。此外，对真实的金金属涂层和理想的电导体都进行了阵列的数值模拟，以确定SERS增强是由于衍射还是等离子体效应。这项工作中使用的具有快速制造工艺的样品可以提供一种获得均匀增强和低成本SERS基板的新方法。

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  • 来源
    《Journal of Materials Research》 |2013年第24期|3401-3407|共7页
  • 作者

    Rui Li; Hong Li; Shi Pan; Kun Liu; Shanshan Hu; Lujun Pan; Yingnan Guo; Shifa Wu; Xufeng Li; Jun Liu;

  • 作者单位

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    Institute of Near-Field Optics & Nano Technology, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

    School of Applied Science, Taiyuan University of Science and Technology, Shanxi 030024, China;

    Microelectronics and Solid State Electronics, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, People's Republic of China;

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