Quantum Dots Mediated Crystallization Enhancement in Two-Step Processed Perovskite Solar Cells.

ABSTRACT: Hybrid organic-inorganic lead halide perovskites have emerged as a promising material for high-efficiency solar cells, yet challenges related to crystallization and defects limit their performance and stability. This study investigates the use of perovskite quantum dots (QDs) as crystallization seeds to enhance the quality of FAPbI₃ perovskite films and improve the performance of perovskite solar cells (PSCs). We demonstrate that CsPbI₃ and CsPbBr₃ QDs effectively guide the crystallization process, leading to the formation of larger crystals with preferential orientations, particularly the (001) and (002) planes, which are associated with reduced defect densities. This seed-mediated growth strategy resulted in PSCs with power conversion efficiencies (PCEs)

SUBMITTER: Liu H 

PROVIDER: S-EPMC11865417 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature