机构地区: 河南大学
出 处: 《纳米科技》 2007年第4期32-35,共4页
摘 要: 合成了功能化的修饰剂双11-十一烯基二硫代磷酸,以此为修饰剂,NaBH4还原可溶性银盐的水溶液制得了功能化的银纳米微粒,并通过氢化硅氢化反应组装银纳米颗粒薄膜。采用透射电子显微镜(TEM)、紫外-可见吸收光谱(UV-Vis)、傅立叶红外吸收光谱(FT-IR)、原子力显微镜(AFM)和X-光电子能谱(XPS)对所制的纳米微粒及组装的薄膜进行形态和结构表征,结果表明:银纳米颗粒为球形,无团聚现象,纳米微粒表面带有可反应的C=C双键不饱和官能团;组装后纳米微粒团聚长大,是通过Si-C键与基底结合。 Surface functional Ag were synthesized by reducing AgNO3 solution in the case of modifying agent , O,O'-di (10-undencen)dithiophonic acid (HDDP), and assembled on hydrogen-terminated silicon (111) surface by a thermal hydrosilylation reaction. The morphology and structure of the resulting nanoparticles and the assembled monolayer film were characterized by Transmission Electron Microscope (TEM), UV-Visible Absorption (UV-Vis) spectra, Fourier Transform Infrared (FTIR) spectra, Atom Force Microscope (AFM) and X-ray Photoelectron spectra (XPS). The results indicated that the Ag nanoparticles are spherical shape and no aggregation. Unsaturated C=C functional group lies in the outmost surfaces; after assembling Ag nanoparticles become larger and attach to Si(111) substrate through Si-C bond.
关 键 词: 双 十一烯基二硫代磷酸 可反应表面修饰 银纳米微粒 氢化硅氢化反应
领 域: [一般工业技术]