We fabricate crystalline dendritic gold (Au-D) via a simple electrochemical method and characterize it using several techniques. Chemical modification by self-assembled thiol molecules on the Au-D is used to adjust the chemical environment of the substrate surface and to improve surface-enhanced Raman scattering (SERS) performance. First, the Au-D modified with different length chains of n-alkyl thiols cause an enhancement of SERS, which follows a rela-
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