Influence of Lewis basicity on the S^2- induced synthesis of 0D Cs₄PbBr₆ hexagonal nanocrystals and its implications for optoelectronics.

ABSTRACT: Perovskite nanocrystals (NCs) with their excellent optical and semiconductor properties have emerged as primary candidates for optoelectronic applications. While extensive research has been conducted on the 3D perovskite phase, the zero-dimensional (0D) form of this promising material in the NC format remains elusive. In this paper, a new synthesis strategy is proposed. According to the Hard-Soft Acid-Base (HSAB) principle, a novel class of hexagonal semiconductor nanocrystals (Cs₄PbBr₆ HNCs) derived from 0D perovskite Cs₄PbBr₆ is synthesized by doping an appropriate amount of PbS precursor solution into bromide. These Cs₄PbBr₆ HNCs are characterized and compared in detail to CsPbBr₃ cubic nanocrystals (CsPbBr

SUBMITTER: Liu Y 

PROVIDER: S-EPMC11726060 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature