Understanding Optical Properties and Electronic Structures of High-Entropy Alloyed Perovskite Nanocrystals.

ABSTRACT: High-entropy alloying (HEA) has emerged as a prominent strategy to modulate physiochemical properties of nanomaterials. Nevertheless, this approach is underexplored in luminescent semiconductor nanocrystals (NCs) due to the lack of understanding into the HEA-induced electronic effect and photophysical behaviors. Herein, harnessing the defect tolerance of metal halide perovskite NCs, we systematically synthesized and characterized high-entropy halide perovskite (HEP) NCs containing multiple B-site elements (Pb²⁺, Sr²⁺, Ca²⁺, Cd²⁺, and Mg²⁺). High-resolution transmission electron microscopy, transient photoluminescence and absorption spectroscopy, X-ray photoemission spectroscopy, and density functional theory simulations are employed to

SUBMITTER: Chiang YT 

PROVIDER: S-EPMC12416448 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature