In this study, silver-copper layers were grown by DC magnetic sputtering under nitrogen gas at different time periods. Using AFM analysis, a relatively uniform distribution of almost spherical nanoparticles was observed on the surface of the layers, which by increasing the deposition time, the grain size also changed and in some areas on the surface became agglomerated. The average nanoparticle size is reported to be about 4 nm. Fractal and statistical analysis of the surface of the samples was investigated, and it was shown that the fractal dimension of smooth surfaces is larger than rough surfaces, which means higher reproducibility. In addition, using the absorption spectrum in the UV–visible region, it was shown that the Surface plasmon resonance (SPR) was shifted sharply toward higher Plasmon frequencies by escalating the deposition time.

在这项研究中，银铜层是通过在不同时间的氮气下通过直流磁溅射来生长的。使用AFM分析，在层表面观察到几乎球形的纳米颗粒相对均匀的分布，这通过增加沉积时间而改变了晶粒尺寸，并且在表面的某些区域发生了团聚。据报道平均纳米颗粒尺寸为约4nm。研究了样品表面的分形和统计分析，结果表明，光滑表面的分形维数大于粗糙表面的分维数，这意味着更高的重现性。此外，利用紫外可见区域的吸收光谱，表明通过延长沉积时间，表面等离子体激元共振（SPR）向较高的等离激元频率急剧偏移。