title: [Preparation of Au@SiO2 core-shell nanoparticles: controlling the optical properties].
abstract: The authros developed a new approach to preparing the Au@SiO2 core-shell nanostructure. The morphology and stability of the composite were characterized by the UV-Vis absorption spectroscopy and transmission electron microscopy (TEM) methods. The stable SERS spectra were obtained from the PMBA-functionalized Au@SiO2 composite. In addition, the authros succeeded in adjusting the thickness of SiO2 layer by controlling the precursor consumption. The stability of Au@SiO2 in basic solution was studied and the results showed that the SiO2 shell was facile to be etched. The present work may provide a reference and gist for research on the preparation, storage and application of Au@SiO2.
authors: Department of Mathematics and Physics, Beijing Institute of Technology Petrochemical, Beijing 102617, China. shdtnz@gmail.com
authors: En-Zhong
authors: EZ
authors: Tan
authors: Peng-Gang
authors: PG
authors: Yin
authors: Wei-Feng
authors: WF
authors: Huang
authors: Ge
authors: G
authors: Yu
authors: Chun-Na
authors: CN
authors: Yu