论文部分内容阅读
采用循环伏安法(CV),在ITO玻璃表面一步法电沉积了花状的Au@R6G(罗丹明6G)复合纳米粒子膜,该膜呈现很强的表面增强拉曼散射(SERS)活性,比传统制备金膜的方法提高了一个数量级。采用扫描电子显微镜(FE-SEM),X射线衍射光谱(XRD),拉曼光谱对复合纳米粒子进行表征。通过实验发现,电沉积20圈时的Au@R6G样品SERS信号增强最为显著,R6G的SERS检测限可达到10-10 M。
The flower-like Au @ R6G (rhodamine 6G) composite nanoparticle film was electrodeposited on the surface of ITO glass by cyclic voltammetry (CV). The film exhibited strong surface enhanced Raman scattering (SERS) This is an order of magnitude higher than the traditional method of preparing gold films. The composite nanoparticles were characterized by scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and Raman spectroscopy. It was found through experiment that the SERS signal of Au @ R6G samples enhanced most significantly after 20 cycles of electrodeposition, and the detection limit of R6S was 10-10 M by SERS.