Graphene oxide-silver nanocomposite as SERS substrate for dye detection: Effects of silver loading amount and composite dosage

The effects of silver loading and composite dosage on SERS performance of GO-Ag composite as substrate for dye detection were investigated, which showed a rational, but not the higher the better, silver loading or composite dosage should be optimized to achieve strong SERS intensity with high signal to noise ratio, and thus low detection limit.