Abstract
Copper nanowires were prepared by a solid-state ionics method using fast ionic conductor Rb4Cu16Cl13I7 films under a direct current electric field (DCEF). The surface morphology of the copper nanowires was characterized by scanning electron microscopy (SEM). Rhodamine 6G (R6G) aqueous solutions were used as probe molecules to detect the Raman enhancement performance of the copper nanowires substrates. We found that the long-range disorder and short-range order copper nanowires were prepared by a solid-state ionics method. The diameters of nanowires ranged from 50 to 100nm and the nanowires were bamboo-shaped. The limiting concentrations of R6G for the prepared copper nanowires SERS substrates is 10−11mol/L.
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