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Tuning the SERS activity of Au@Pd core-shell nanoparticles by controlling the thickness of the Pd shell

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Tuning the SERS Activity of Au@Pd Core-shell Nanoparticles by Controlling the Thickness of the Pd Shell.pdf (1.215Mb)
Date
2005
Author
LI Jian-feng
李剑锋
HU Jia-wen
胡家文
REN Bin
任斌
TIAN Zhong-qun
田中群
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  • 化学化工-已发表论文 [14469]
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Abstract
Pinhole-free An core Pd shell (Au@Pd) nanoparticles with controllable size were synthesized, and the optical properties of the nanoparticles can be tuned by varying the size of the core and the thickness of the shell. The Au@Pd nanoparticles were characterized with TEM, HRTEM, UV-Vis absorption spectroscopy and SERS. Through a systematic study of the dependence of SERS activity of Au@Pd nanoparticles on the thickness of the Pd shell, it was found that the SERS activity of the Au@ Pd nanoparticles is much higher than the massive Pd electrode roughened using electrochemical method, which is owing to the long-range effect of the enhanced electromagnetic field of the Au core.
Citation
ACTA PHYSICO-CHIMICA SINICA,2005,21(8):825-828
URI
https://dspace.xmu.edu.cn/handle/2288/11154

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