首页> 外文会议>Workshop on Recent Advances in Photonics >Comparison of SERS activity of sputtered, electroless-plated and nanoparticle-coated plastic fiber optic probes
【24h】

Comparison of SERS activity of sputtered, electroless-plated and nanoparticle-coated plastic fiber optic probes

机译:溅射,化学镀和纳米涂层塑料光纤探针的SERS活性比较

获取原文

摘要

Surface Enhanced Raman Scattering (SERS) spectroscopy is a promising tool for trace molecule analysis. Substrate development plays a crucial role in determining the SERS signal enhancement and the analyte detection limits. In this study, Plastic fiber optic (POF, 0.75 mm fiber diameter) U-bent probes coated with plasmonic gold obtained by three different approaches, namely sputtering, electroless-plating and Au nanoflower (AuNF) chemisorption are compared for their SERS activity using thiophenol as a model Raman analyte. The minimally sputtered probes produced detectable analyte peaks at low power but with lower enhancement. Substrates with increased sputter deposition times provided better enhancement. However, the AuNF-coated probes gave maximum SERS enhancement even at low power.
机译:表面增强拉曼散射(SERS)光谱是痕量分子分析的有希望的工具。基质开发在确定SERS信号增强和分析物检测限方方面起着至关重要的作用。在该研究中,塑料纤维(POF,0.75mm纤维直径)U形弯曲探针涂有三种不同的方法,即溅射,无电镀和Au nanoflower(AUNF)化学,以使用噻吩酚的SERS活性进行比较作为模型拉曼分析物。最小溅射的探针在低功率下产生可检测的分析物峰,但增强较低。具有增加的溅射沉积时间的基板提供了更好的增强。然而,即使在低功率下,AUNF涂覆的探针也会给出最大的SERS增强。

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