فهرست نشریات علمی دسترسی آزاد ایران

Using the precipitation process, copper oxide nanoparticles (CuO NPs) were created at different calcination temperatures of (400, 600, and 800) °C. Polymeric films (CMC-PVP) incorporating (CuO NPs) were fabricated using the casting method with weight ratios of (3, 5, 7, and 9) %. The film’s thickness measured (45±1) µm. The FE-SEM measurements indicated the copper oxide phase is achieved at (400°C), and as the temperature rises, the crystallinity and particle size both increase at (600°C) and (800°C) calcination temperatures, and their propensity for agglomeration and irregular flake-like morphologies. The optical and thermal characteristics of films reinforced with CuO nanoparticles demonstrate their influence on optical transmittance over the (200-1100) nm wavelength range, alongside a decrease in energy band gap values from 4.90 eV to 4.35 eV and an increase in thermal conductivity (K) of the prepared films with escalating reinforcement ratios.