Preparation of Au-Ag Nanoframe and its Application in SERS

Abstract:

A simple and facile preparation approach of gold-silver nanoframes is described based on triangular silver nanoplates. HAuCl₄ was used as etching agent and added to boiling nanoplates suspension under stirring. Especially, when different concentrations of HAuCl₄ was employed, various etching happened and corresponding morphology of gold-silver nanoframes were acquired. The properties of nanoframes were characterized by scanning electron microscopy (SEM) and UV-vis spectra. Then the nanoframes were self-assembled onto the silicon treated with APTMS and used as SERS substrates for detecting p-ATP molecules. The results indicated that nanoframes showed better SERS effects than nanoplates.

• Periodical: Applied Mechanics and Materials (Volume 748)
• Pages: 71-75
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.748.71
• Online since: April 2015
• Authors: Shi Li Liu, Zhi Qing Xin, Lu Hai Li*
• Keywords: Etching, Gold-Silver Nanoframes, Surface Enhanced Raman Scattering (SERS), Triangular Silver Nanoplates

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