The evolution of spectral and luminescent properties of Ag-containing composite coatings prepared by liquid technique has been studied. Double stabilization allows forming thin oxide films containing luminescent small Ag_n (n < 5) molecular clusters using the liquid technique. These clusters are non-stable intermediate products during the formation of Ag nanoparticles from the ions and neutral atoms. It was found that small luminescent Ag_n molecular clusters (n < 5) formed in the solutions at the presence of polyvinylpyrrolidone (PVP) remain in PVP/metal nitrates composite coatings and in the calcined metal oxide coatings. Spatial separation of small Ag molecular clusters in the coatings by the oxide nanoparticles of ZnO and MgO prohibits silver clusters growth and non-luminescent silver nanoparticles formation and allows saving coatings’ luminescence properties during thermal treatment.

研究了通过液体技术制备的含银复合涂层的光谱和发光特性的演变。双重稳定化允许 使用液体技术形成包含发光小Ag _n（n <5）分子簇的氧化物薄膜。这些簇是从离子和中性原子形成银纳米颗粒期间的不稳定中间产物。发现发光的Ag _n小分子簇（n 在聚乙烯吡咯烷酮（PVP）存在下在溶液中形成的<5）保留在PVP /金属硝酸盐复合涂层和煅烧的金属氧化物涂层中。ZnO和MgO的氧化物纳米颗粒在涂层中空间分离小的Ag分子簇可防止银簇的生长和不发光的银纳米颗粒的形成，并可以节省热处理过程中涂层的发光性能。