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Low Cost Scalable Self-Assembly of Silver Nanowire Thin Films for Surface Enhanced Raman Scattering Application

  • Changfeng Chen (a1), Jumin Hao (a1), Leyun Zhu (a1), Yuqin Yao (a1) and Qingwu Wang (a1)...

Abstract

Assembly of nanowires into ordered macroscopic structures has attracted great scientific interests in the past decade. In this work, we report a rapid low-cost scalable oil-water interfacial self assembly process for fabricating aligned Ag nanowires (AgNWs) films on solid substrates. This process is much simpler than the traditional Langmuir-Blodgett (LB) techniques and allows the assembly of one–dimensional Ag nanowires onto any solid substrates without extra pretreatment of the surface of silver nanowires or the solid substrate. The present aligned AgNW films can serve as robust surface-enhanced Raman scattering (SERS) sensors for chemical and bimolecular detection with improved spectra quality and demonstrated uniformity of SERS signal using R6G dye as probe.

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