Used in research and development of luminescent materials and optical devices due to its ability to emit light in the near-infrared range. Plays a role in doping solid-state lasers and amplifiers, where it enhances efficiency and performance. Also investigated for use in quantum memory and communication systems because of its favorable electron energy levels. Serves as a precursor in synthesizing other ytterbium-containing compounds for catalysis and materials science. Its hydrate form supports solubility in polar solvents, enabling solution-based processing in thin-film and nanomaterial fabrication.