The College of Science at the University of Kerbala has discussed a study on the effect of laser irradiation on the structural and optical properties of PVA-CoCl2 films for master’s student Muhammad Sahib Abbas

The study aimed to use laser irradiation to control the energy gap of (PVA-CoCl2) solutions and films, as well as the investment of the composite films (PVA-CoCl2) under thermal conditions and the investment of the composite films (PVA-CoCl2) under moisture conditions.
The study concluded that the effect of laser irradiation on the optical and structural properties is positive in achieving the research objectives. The use of laser irradiation to control the energy gap in the overlapping solutions (PVA-CoCl2) and the use of laser beams to control the energy gap of the composite films (PVA-CoCl2). AFM showed that the grain size decreases with increasing laser irradiation time.
Also, (PVA-CoCl2) overlapped films can be invested as a thermostat at a low cost, (PVA-CoCl2) overlapped films can be supported as a hygrometer that can be used more than once, and (PVA-CoCl2) overlapped films can be invested as smart windows.
The study recommended irradiating (PVA-CoCl2) overlapping films with another source such as a high-power pulsed laser using another polymer PMMA with CoCl2, as well as studying the structural and optical properties, and studying the electrical properties and dispersion coefficients.