Used as a precursor in the synthesis of yttrium-based ceramic materials and phosphors, particularly in the production of yttrium aluminum garnet (YAG) for solid-state lasers and LED phosphor coatings. It serves as a catalyst or dopant in certain organic and inorganic reactions due to its Lewis acidity. Applied in sol-gel processes to fabricate thin films and nanostructured materials for electronic and optical devices. Also utilized in research for developing yttrium-containing superconductors and luminescent materials. Its solubility in polar solvents makes it suitable for solution-based deposition techniques.