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Yongjun Zhang, Wenting Gao, Shuo Yang, Shanshan Liu, Xiaoyu Zhao, Ming Gao, Yaxin Wang and Jinghai Yang Nanogaps in 2D Ag-nanocap arrays for surface-enhanced Raman scattering Journal of Raman Spectroscopy 44

Article first published online: 19 SEP 2013 | DOI: 10.1002/jrs.4390

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When the original colloidal arrays are used as the substrate for Ag deposition, surface-enhanced Raman scattering (SERS) enhancements show the strong size-dependence behaviours. When O2-plasma etched two-dimensional polystyrene templates are used as the substrate for Ag deposition to form nanogaps, the gap sizes between adjacent Ag nanocaps from 5 to 20 nm generate even greater SERS enhancements.

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