Used as a precursor in the synthesis of terbium-containing luminescent materials, particularly in phosphors for green-emitting components in fluorescent lamps and trichromatic lighting systems. Plays a role in the preparation of catalysts and functional oxides for optical and electronic applications. Employed in research for doping inorganic matrices to produce materials with specific emission properties under UV or electron excitation. Also utilized in the fabrication of sensors and in studies involving lanthanide-based coordination compounds due to its strong luminescence and paramagnetic characteristics.