Abstract

In this paper, an effective substrate for surface-enhanced fluorescence, which consists of dendritic silver nanostructure on copper surface, was fabricated by modified galvanic displacement reaction at room temperature. It was found that the fluorescence efficiency of Rh6G probe molecules on the substrate depended on the period of the nanostructure growth. And it increased with the enrichment of fine-branches of the dendritic silver nanostructure. The experimental results indicated that the fine nanostructure with dendritic distribution can produce better fluorescence enhancement with the help of proper control over the reaction condition. It is important for studying the mechanism and the potential applications of enhanced fluorescence effect.

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