Yanfei Wang, Weidong Ruan, Junhu Zhang, Bai Yang, Weiqing Xu, Bing Zhao and John R. Lombardi Direct observation of surface-enhanced Raman scattering in ZnO nanocrystals Journal of Raman Spectroscopy 40
The surface-enhanced Raman scattering (SERS) from 4-mercaptopyridine molecules adsorbed on ZnO nanocrystals was observed. The enhancement factor (EF) was estimated to be 103. An excitation wavelength-dependent behavior was clearly observed. The chemical enhancement is most likely responsible for the observed enhancement.
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