Achieving long-term water stability and strong exciton-photon coupling in CsPbBr₃ quantum dots via MOF encapsulation.

ABSTRACT: CsPbBr₃ perovskite quantum dots (QDs) are renowned for their exceptional optical properties, including high quantum efficiency, strong exciton binding energy, and tunable emission wavelengths. However, their practical application is hindered by their inherent susceptibility to environmental degradation. In this study, we introduce a CsPbBr₃@UiO-66 composite material, where CsPbBr₃ QDs self-assemble within the microporous framework of UiO-66, a robust metal-organic framework (MOF). This encapsulation strategy significantly enhances the environmental stability of CsPbBr₃ QDs, maintaining luminescence for over 30 months under ambient conditions and several hours underwater. Temperature-dependent and time resolved photoluminescence (TRPL) measurement

SUBMITTER: Lin CC 

PROVIDER: S-EPMC12273544 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature