A rapid green route for fabricating efficient SERS substrates

作者：Jiang, Feng; Wang, Shun^*; Li, Ling; Jin, Huile; Zhang, Weiming; Lin, Juanjuan; Tang, Tiandi; Wang, Jichang

来源：Green Chemistry, 2011, 13(10): 2831-2836.

DOI：10.1039/c1gc15505a

• SILVER NANOPARTICLES
• SINGLE-CRYSTAL
• AG
• NANOSTRUCTURES
• DENDRITES
• ARRAYS

This study develops a simple, rapid electrochemical approach for preparing dendrite-shaped Ag nanomaterials, which are well known as effective SERS substrates. In addition to yielding silver that exhibits a strong enhancement in SERS measurements when tested with 2,2'-dithiodipyridine and ethylenethiourea, this new fabrication method does not require any template, surfactants or supporting electrolyte, making it environment friendly. Analysis illustrates that the as-prepared Ag products are essentially pure silver consisting of abundant {111}-oriented crystallites. These Ag dendrites formed on a commercially available tin-doped indium oxide electrode could also be easily transferred onto other desired surfaces, making their application in SERS measurements more versatile.

• 出版日期2011
• 单位温州大学