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Synthesis of Au@Ag Core-Shell Nanoparticles for Sensitive Surface-Enhanced Raman Scattering by Precisely Adjust Its Morphology
Author NameAffiliationE-mail
LIU Xiao-Yu Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China  
ZHANG Dong-Jie Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China  
ZHANG Hui-Juan Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China  
ZHANG Cong-Yun Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China z.congyun@nuc.edu.cn 
LIU Ya-Qing Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China lyq@nuc.edu.cn 
Abstract: Au@Ag core-shell nanoparticles were prepared by seed-mediated growth method. The plasmon resonance properties of the core-shell nanoparticles are highly dependent on the size and shape of the core and thickness of the shell, which could be simply adjusted by varying the concentration of HAuCl4 and the volume of AgNO3. The prepared core-shell nanoparticles exhibit excellent SERS performance as substrate to detect rhodamine 6G (R6G). In addition, the precise control of core-shell morphologies (core size and shape, the thickness of the shell) is of significant importance as it strongly determines the overall SERS performance in micro chemical detection.
Keywords: Au@Ag core-shell nanoparticles  SERS  rhodamine 6G
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LIU Xiao-Yu,ZHANG Dong-Jie,ZHANG Hui-Juan,ZHANG Cong-Yun,LIU Ya-Qing.Synthesis of Au@Ag Core-Shell Nanoparticles for Sensitive Surface-Enhanced Raman Scattering by Precisely Adjust Its Morphology[J].Chinese Journal of Inorganic Chemistry,2018,34(4):712-718.
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Chinese Journal of Inorganic Chemistry