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Thickness-dependent morphologies of Ag on n-layer MoS2 and its surface-enhanced Raman scattering

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The size and density of Ag nanoparticles on n-layer MoS2 exhibit thicknessdependent behavior. The size and density of these particles increased and decreased, respectively, with increasing layer number (n) of n-layer MoS2. Furthermore, the surface-enhanced Raman scattering (SERS) of Ag on this substrate was observed. The enhancement factor of this scattering varied with the thickness of MoS2. The mechanisms governing the aforementioned thickness dependences are proposed and discussed.

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Correspondence to Lianfeng Sun.

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Deng, Y., Chen, M., Zhang, J. et al. Thickness-dependent morphologies of Ag on n-layer MoS2 and its surface-enhanced Raman scattering. Nano Res. 9, 1682–1688 (2016).

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