Highly Stable Colloidal Lithium Niobate Nanocrystals with Strong Violet and Blue Emission.

High-quality LiNbO colloidal nanocrystals were synthesized by the sol-gel technique. Morphological, structural, and optical spectroscopy methods were used to characterize LiNbO colloidal nanocrystals. To investigate the optical properties, UV-visible absorption spectroscopy was used, which showed that the absorption peak was around 250 nm.