Encapsulation of CsPb₂Br₅ in TiO₂ Microcrystals to Enhance Environmental Stability.

ABSTRACT: All-inorganic lead halide perovskite has emerged as an attractive semiconducting material due to its unique optoelectronic properties. However, its poor environmental stability restricts its broad application. Here, a simple method for the fabrication of CsPb₂Br₅/TiO₂ is investigated. The introduction of p-aminobenzoic acid, which has two functional groups, is critical for the capping of amorphous TiO₂ on CsPb₂Br₅. After calcination at 300 °C, amorphous TiO₂ crystallizes into the anatase phase. The CsPb₂Br₅/TiO₂ NCs show high long-term stability in water and enhanced stability against ultraviolet radiation and heat treatment, owing to the chemical stability of TiO₂. More

SUBMITTER: Wang Y 

PROVIDER: S-EPMC10745879 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature