Synthesis, Properties, and Applications of Morphology-Controlled Perovskite Quantum Dots.

Lead halide perovskite quantum dots (QDs) have become a promising class of nanomaterials due to their simple, scalable synthesis and high luminescence efficiency. However, their high ionicity and low lattice formation energy make controlling the synthesis of perovskite QDs particularly challenging. Although there have been significant advances in controlling the size of perovskite QDs, increasing efforts have focused on selecting and stabilizing their various surface facets. In this review, we examine recent developments in morphology-controlled isotropic perovskite QDs, emphasizing the latest techniques for managing surface facet exposure, facet passivation, and the optical and chemical properties of these QDs. We also explore future challenges and opportunities for precise synthesis control, especially regarding shape control of strongly confined QDs, which is vital for understanding the relationship between structure and propertiesultimately improving the performance and stability of perovskite QD-based optoelectronic devices and photocatalysts.