Europine is primarily used in specialized optical and electronic applications due to its unique luminescent properties. It serves as a dopant in phosphors for cathode ray tubes and fluorescent lamps, enhancing red emission for improved color rendering. It is also utilized in solid-state lasers and optical amplifiers, particularly in fiber-optic communication systems, where it contributes to signal efficiency in the near-infrared range. In addition, europine finds application in anti-counterfeiting measures, such as in security inks and tags, due to its distinct emission signature under UV light. Its ability to act as a contrast agent in certain medical imaging techniques is under investigation, particularly in time-resolved fluorescence assays for biological markers.