分析化学2017，Vol.45Issue(3)：374-380,7.DOI:10.11895/j.issn.0253-3820.160785
树枝状银微纳结构的表面增强拉曼散射效应研究
Surface-enhanced Raman Scattering Effect of Silver Dendritic Nanostructures
摘要
Abstract
The facile and efficient synthetic route for Ag dendritic nanostructures on Indium tin oxide ( ITO) via electrodeposition was reported. The results showed that the Raman intensities of rhodamine 6G ( R6G) decreased with decreasing the loading concentration, and even at a low concentration of 10-10 mol/L, the signatures of R6G in Raman spectrum were still clearly observed. It indicated that the Ag dendritic nanostructures exhibited high surface-enhanced Raman scattering ( SERS) sensitivity. Moreover, the relative standard deviation ( RSD ) of band at 610 cm-1 was calculated to be 12 . 1%, 12 . 0%, 11 . 7%, 10 . 9%, 13. 2% and 14. 3%, respectively, corresponding with the concentration of R6G from 10-5 mol/L to 10-10 mol/L, which revealed that the Ag dendritic nanostructures could provide abundant hot spots and exhibited excellent reproducibility. In addition, the SERS spectrum of 3-mercaptopropionic acid (3MPA) also could be detected when its concentration was 10-5 mol/L. This method offers an easy and low-cost way to prepare Ag dendritic substrates and makes SERS detection more practicable.关键词
表面增强拉曼散射/银微纳结构/电化学沉积/层级结构Key words
Surface-enhanced Raman scattering/Silver micro-nano structures/Electrochemical deposition/Hierarchical structure引用本文复制引用
陈韶云,王圆,刘辉,胡成龙,刘学清,刘继延..树枝状银微纳结构的表面增强拉曼散射效应研究[J].分析化学,2017,45(3):374-380,7.基金项目
本文系国家自然科学基金(No. 51303066)和湖北省自然科学基金(No. 2016CFB194)资助项目 This work was supported by the National Natural Science Foundation of China (No. 51303066) and the Natural Science Foundation of Hubei Province, China (No. 2016CFB194). （No. 51303066）
