The effect of surface ligands on the surface chemical states and photoluminescence characteristics in cesium lead bromide perovskite nanocrystals.

ABSTRACT: This paper presents the results of our study on the relationship between the surface chemical states, which are influenced by ligands, and photoluminescence (PL) characteristics in cesium lead halide perovskite nanocrystals (NCs). NCs were synthesized via the Ligand-Assisted Reprecipitation (LARP) and Ultrasonic-Assisted (URSOA) methods, which were able to produce NCs with and without ligands. Although both synthesis methods used similar precursor composition and processing steps, the resulting crystal structures of NCs are different. The LARP method yielded orthorhombic CsPbBr₃ NCs, while the URSOA method yielded a mixture of hexagonal Cs₄PbBr₆ NCs and orthorhombic CsPbBr₃ NCs with an approximate weight ratio of ∼10 : 1. The X-ray diffrac

SUBMITTER: Asharuddin M 

PROVIDER: S-EPMC12395022 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature