In this work, we present a more complete description of the optical properties of the silver nanoparticles formed in silver oxide thin films. Ag/Ag₂O composites were synthesized by treating silver thin films manufactured by thermal evaporation method with oxygen plasma afterglow. The results showed that exposing silver thin films to oxygen plasma afterglow leads to a monocrystalline structure of silver oxide. Consequently, the relationship between the crystal size and the characteristics of the plasmon optical absorption peaks was studied. A slight degradation of plasmon peaks of the individual silver nanoparticles was observed. We suggested that this degradation might be due to the mutual interaction between the individual silver nanoparticles located near the Ag₂O grain shell and the larger silver nanoparticles in neighboring grains. We found that the degree of degradation is related to the Ag₂O grain size. On the other hand, the origin of each fluorescence peak in the Raman spectra of the prepared films was determined.

中文翻译：

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氧等离子体处理银薄膜合成的Ag / Ag 2 O复合材料中单个银纳米粒子的光学性质

在这项工作中，我们对形成在氧化银薄膜中的银纳米颗粒的光学性质进行了更完整的描述。通过用氧等离子体余辉处理热蒸发法制得的银薄膜来合成Ag / Ag ₂ O复合材料。结果表明，将银薄膜暴露于氧等离子体余辉会导致氧化银的单晶结构。因此，研究了晶体尺寸与等离子体激元光吸收峰的特性之间的关系。观察到单个银纳米粒子的等离激元峰略有降解。我们认为这种降解可能是由于位于Ag ₂附近的各个银纳米颗粒之间的相互作用O晶粒壳和相邻晶粒中较大的银纳米粒子。我们发现降解程度与Ag ₂ O晶粒尺寸有关。另一方面，确定了所制备的膜的拉曼光谱中每个荧光峰的起源。