Tuning Perovskite Nanocrystal Synthesis via Amphiphilic Block Copolymer Templates and Solvent Interactions.

ABSTRACT: Amphiphilic block copolymer (a-BCP) micelles offer morphological diversity and dimensional tunability, making them suitable for the fabrication of perovskite nanocrystals. However, precise control over the nucleation and growth of perovskite nanocrystals using a-BCP colloidal templates remains underexplored. This study investigates the effects of toluene, methanol, and polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) on the formation of cesium lead bromide (CsPbBr₃) nanocrystals. The process involves four stages: (i) PS-b-P2VP micellization, (ii) PbBr₂ complexation, (iii) coordination interaction with P2VP, and (iv) burst nucleation of CsPbBr₃ nanocrystals. Toluene, a good solvent for PS but a nonsolvent for P2VP, PbBr₂, a

SUBMITTER: Sun YS 

PROVIDER: S-EPMC11565575 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature