Effect of macroscopically smooth silver substrate on the surface-enhanced Raman scattering of 4-nitrobenzenethiol adsorbed on powdered au

초록

bRaman scattering measurements were conducted for 4-nitrobenzenethiol (4-NBT) assembled on gold It-powders sparsely dispersed on smooth silver substrates. The SERS signals of 4-NBT were enhanced by using smooth Ag substrates caused by electromagnetic coupling of the surface plasmon polaritons of mu Au powders and flat metal substrate. And 4-NBT adsorbed on Au powder is converted to 4-aminobenzenethiol (4-ABT) by the irradiation of visible light.

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