Composite structures have been widely concerned in the preparation of surface enhanced Raman scattering (SERS) substrates. In this paper, by solving the problem that the magnetic material was difficult to glow in magnetron sputtering, ferro-nickel (NiFe) alloy was deposited on the cicada wing (CW) and the NiFe/CW substrate was obtained. The results of sliver nanoparticles (Ag NPs) modified on the substrate were subsequently compared, and the SERS properties of the new Ag/NiFe/CW substrate were analyzed. Obviously, the intensity of SERS signals has been greatly improved after the modification of Ag NPs, and the substrate exhibits excellent reproducibility. The Ag NPs modified substrates were also applied to the detection of toxic crystal violet (CV) solution, which showed remarkable SERS activity. It has been proved that the strategy of modifying Ag NPs on the substrate to form a composite structure has great potential for improving the SERS performance of the substrate.

在制备表面增强拉曼散射（SERS）基底中，复合结构已被广泛关注。本文通过解决磁性材料在磁控溅射中难以发光的问题，将铁镍（NiFe）合金沉积在蝉翼（CW）上，从而获得NiFe / CW基板。随后比较了在基底上修饰的银纳米颗粒（Ag NPs）的结果，并分析了新型Ag / NiFe / CW基底的SERS性能。显然，Ag NPs修饰后，SERS信号的强度得到了极大的提高，并且底物具有出色的重现性。Ag NPs修饰的底物也用于检测有毒SERS活性的有毒结晶紫（CV）溶液。