Phosphors are materials that exhibit the phenomenon of luminescence, meaning they can absorb energy and then re-emit it as visible light. They are commonly used in various applications, such as in fluorescent lamps, LEDs, and television screens, where they help convert electrical energy into light. Phosphors can be made from different chemical compounds, and their ability to emit light can vary based on their composition and the type of energy they absorb. The process of luminescence in phosphors can occur in different forms, including fluorescence and phosphorescence. Fluorescent phosphors emit light almost immediately after being energized, while phosphorescent materials can store energy and release it slowly over time, creating a glow that lasts longer. This