Used as a scintillator material in radiation detection devices due to its luminescent properties when exposed to ionizing radiation. It is also employed in research for developing phosphors in lighting and display technologies, particularly in specialized red-emitting materials. Its reducing properties make it useful in certain organic synthesis reactions where strong reducing agents are required. Additionally, it serves as a precursor in the preparation of other europium-based compounds for use in solid-state chemistry and materials science. It is commonly used as a dopant in crystal or glass matrices to enhance luminescence efficiency and is studied in quantum electronics and light-sensitive sensors.