Nickel oxide specimens have recently garnered significant attention due to their promising potential in energy storage applications. This study reports on the preparation of nickel oxide materials via a facile sol-gel method, followed by a comprehensive characterization using tools such as X-ray diffraction (XRD), scanning electron microscopy (SEM)

Nanoparticles possess unique optical properties that have sparked widespread interest in their application for diverse technological sectors. Upconversion nanoparticles (UCNPs), a particular class of nanomaterials, exhibit the remarkable ability to convert near-infrared light into visible light. This phenomenon has presented vast possibilities in b