Modulating the local structure of glass to promote in situ precipitation of perovskite CsPbBr 3 quantum dots by introducing a network modifier

High-quality CsPbBr 3 QDs were regulated to be precipitated in borosilicate glass by introducing a network modifier, CaF 2 , and the roles of Ca ions and F ions on the nucleation/growth of CsPbBr 3 QDs in glass were revealed.