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High-throughput thickness determination of n-layer graphenes via gold deposition

High-throughput thickness determination of n-layer graphenes via gold deposition,10.1016/j.cplett.2011.10.052,Chemical Physics Letters,Hai-qing Zhou,F

High-throughput thickness determination of n-layer graphenes via gold deposition  
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After thermal deposition of 2nm Au onto n-layer graphenes, due to the different surface diffusion barriers or coefficients among n-layer graphenes, gold morphologies are dependent on the layer number of graphenes, which can be applied to determine the microscopic structures of graphenes: the folded graphene, stacked or mixed graphene layers, graphene with nanometer-scale size, and the stacking order between the top and down graphene layers. Meanwhile, obvious surface-enhanced Raman scattering has been detected at 633nm laser excitation, which is also dependent on the layer number of graphenes.
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