Fluorescent materials are substances that have the ability to absorb light at a certain wavelength and re-emit it at a longer wavelength, producing a visible glow or fluorescence. These materials are used in a wide range of applications, including biochemical analysis, environmental monitoring, medical imaging, and consumer products such as fluorescent markers and dyes. Fluorescent materials are typically composed of organic or inorganic compounds that possess specific optical properties, such as a high quantum yield and long fluorescence lifetime. Researchers in this field study the synthesis, characterization, and applications of fluorescent materials to develop new and improved materials with enhanced properties and performance.