Optoelektronik uygulamalar için damla döküm yöntemini ile MgF2/ZnS/MgF2 çoklu yansımalı kaplama sisteminin üretim ve karakterizasyonu

In this research, single, double, and multilayer anti-reflection coatings were fabricated using MgF2 and ZnS through the drop-casting method. Different characterization techniques were employed, including X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, and atomic force microscopy. Additionally, measurements were conducted using a UV-Vis spectrophotometer, examining optical properties for different layer configurations. The findings indicated that all the prepared samples exhibited a polycrystalline structure. The MgF2 film exhibited a tetragonal structure, while the ZnS film exhibited a hexagonal structure. These films showed small grain sizes and low dislocation density. Furthermore, the surfaces of all samples displayed roughness, which is advantageous for reducing reflectivity. In terms of optical characteristics, both MgF2 and ZnS single and double layers exhibited high transmission across a visible range. Moreover, they efficiently reflected UV light. These optical properties make them promising candidates for applications such as UV protection coatings and optical filters. Notably, the MgF2/ZnS/MgF2 multilayer structure exhibited low reflectivity, making it particularly well-suited for optical applications such as laser windows, where minimal reflection.