Nickel oxide nanoparticles have recently garnered significant attention due to their promising potential in energy storage applications. This study reports on the synthesis of nickel oxide materials via a facile hydrothermal method, followed by a comprehensive characterization using methods such

Nanoparticles possess unique optical properties that have sparked considerable interest in their application for diverse technological domains. Upconversion nanoparticles (UCNPs), a particular class of nanomaterials, exhibit the remarkable ability to convert near-infrared light into visible light