文章基本信息

标题：Synthesis of Silver Nanostructures and their Application in Highly Sensitive SERS Sensors
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作者：Alok Kumar Srivastava ; Punam Awasthi ; Sanjay Kanojia 等
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2017
卷号：68
期号：1
页码：98-103
语种：English
出版社：Defence Scientific Information & Documentation Centre
其他摘要：A comparison of Surface Enhanced Raman Scattering (SERS) activity of chemically synthesised silver nanostructures with different shapes is reported. The silver nanostructures of cubical, prism and wire like morphology were synthesised using chemical synthesis route and utilised as SERS substrates. The sensors were fabricated by spin coating these materials over a Silicon or glass substrate. The fabricated sensors were used to analyse response with two different analytes, 4-Mercaptobenzoic acid and Rhodamine 6G under different concentrations. The signal enhancement was compared with a silver coated thin film over glass substrate and it was observed that the enhancement of the order of 10 3 is achieved. The nanowire performed better than the other forms of silver and gave a higher signal enhancement for all the analytes as compared to other nanostructures. The fabricated sensors may be useful for various applications including explosive and biowarfare agent detection.
关键词：Nanomaterial synthesis;Silver nanowires;Nanocubes;Surface Enhanced Raman Scattering;Sensors