Dispersibility criteria based on Hansen solubility parameters for perovskite nanocrystals via ligand-assisted...

Lead halide perovskite nanocrystals (PeNCs) are in high demand for industrial applications. Among the numerous synthetic routes, the ligand-assisted reprecipitation method has emerged as a promising approach owing to its low energy requirements and feasibility under ambient conditions at room temperature, which is advantageous from an industrial standpoint. Controlling the dispersibility of PeNCs during the fabrication process is crucial for enhancing the product yield. However, the dispersibility criteria remain ambiguous and have not been adequately integrated into the fabrication process. In this study, these criteria were determined using Hansen solubility parameters, resulting in a high product yield of 68.4 % and high product amounts. These findings offer valuable insights into the dispersibility of PeNCs and promising criteria for their fabrication.