• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Anti-reflection textured structures by wet etching and island lithography for surface-enhanced Raman spectroscopy
【24h】

Anti-reflection textured structures by wet etching and island lithography for surface-enhanced Raman spectroscopy

机译：通过湿蚀刻和岛式光刻技术制成的抗反射纹理结构，用于表面增强拉曼光谱

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A high surface area and low reflection textured surface-enhanced Raman scattering (SERS) substrate with plasmonic gold nanodroplets fabricated by wet etching and island lithography was reported in the present study. Specifically, four textured substrates, planar, pyramid, nanopillar, and nanopillar-on-pyramid, were fabricated. The fabricated structures were simulated using the finite-difference time-domain method and the results agreed with the reflection and dark-field scattering measurements. Although the SERS signals varied in different measured regions because of the random nanostructure, the SERS substrates with nanopillar-on-pyramid structure always have the stronger enhancement factor than the SERS substrates with only pyramids or nanopillars. Based on the atomic force microscope and reflection measurements, the nanopillar-on-pyramid structure provided a large surface area and multiple reflections for SERS enhancement, which was about 3 orders of magnitude larger than that of the planar substrate. Our results can be applied to fabricate the inexpensive, large surface area, and high SERS enhancement substrates. (C) 2015 Elsevier B.V. All rights reserved.
机译：本研究报道了通过湿法刻蚀和岛状平版印刷术制备的具有等离子金纳米滴的高表面积，低反射纹理表面增强拉曼散射（SERS）衬底。具体而言，制造了四个有纹理的基板，分别是平面基板，金字塔基板，纳米柱以及金字塔上的纳米柱。使用有限差分时域方法对结构进行了模拟，结果与反射和暗场散射测量结果一致。尽管由于随机的纳米结构，SERS信号在不同的测量区域中会有所不同，但具有金字塔形纳米柱的SERS基板始终比仅具有金字塔形或纳米柱的SERS基板具有更强的增强因子。基于原子力显微镜和反射测量，金字塔上的纳米柱结构为SERS增强提供了较大的表面积和多次反射，比平面基板的反射率大3个数量级。我们的结果可用于制造廉价，大表面积和高SERS增强基材。 （C）2015 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号