Researchers create all-inorganic perovskite nanocrystalline glass doped with rare-earth ions

Researchers from China's Kunming University of Science and Technology and Southwest United Graduate School have doped rare-earth ions into borosilicate glass for the first time to induce the self-crystallization of CsPbBr3 QDs.

All-inorganic perovskite quantum dots (QDs) in glass materials, specifically CsPbX3 (X = Cl, Br, I), have potential as next-generation fluorescent materials due to their impressive luminous performance and stability. However, the crystallization process of quantum dots within the glass presents a challenge, leading to uneven crystallinity and subsequent reductions in light efficiency, thereby affecting practical applications. In glass ceramics doped with rare-earth oxides, the introduction of rare-earth ions as nucleating agents can promote the self-precipitation of nanocrystalline crystals within the glass. 


The team's novel approach effectively enhances the equilibrium distribution of quantum dots within the glass, resulting in a significant improvement in luminosity. Furthermore, the luminescence spectrum range of quantum dot-shaped luminescent glass materials can be finely tuned through rare-earth ion doping. 

This work may hold both theoretical and practical significance for their application in the field of lighting.

Posted: Apr 27,2024 by Roni Peleg