Room-temperature synthesis of flowerlike Ag nanostructures consisting of single crystalline Ag nanoplates

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• 作者：Jianhui Yang^a ; Robert C. Dennis^a ; Dhiraj K. Sardar ; ^a ; ^{dsardar@utsa.edu"" rel=""nofollow}
• 关键词：Metals ; Raman Spectroscopy ; Nanostructures
• 刊名：Materials Research Bulletin
• 出版年：2011
• 出版时间：July 2011
• 年：2011
• 卷：46
• 期：7
• 页码：1080-1084
• 全文大小：481 K

文摘

We demonstrate a simple wet-chemical route for the high-yield synthesis of flowerlike silver nanostructures consisting of single crystalline Ag nanoplates by mixing AgNO₃ and p-phenylenediamine (PPD) in the presence of polyvinylpyrrolidone (PVP) at room temperature. PPD serves both as a reducing agent, and as an architecture soft template with PVP to the formation of such Ag nanostructures. It is found that the presence of PVP has a significant effect on the formation and growth of these novel nanostructures. The flowerlike silver nanostructures could serve as highly sensitive and reproductive surface-enhanced Raman scattering (SERS) substrates for chemical and biological detection.