We now turn our attention to the self-assembly properties of the PNPls. To evaluate the formation of stacks in the nanoplates' suspensions, we first collected SAXS data from solid samples, forcing them to assemble into superlattices. Briefly, we filled 1.5-mm borosilicate capillaries with 80-mg/mL PNPls suspensions in hexane. Then, we dried the solvent under reduced pressure with the help of a desiccator. This process allowed the nanoplates to selfassemble into stacks. Consequently, we could have a reference for the analysis of the stacking in suspension. Figure shows the curves of these solid samples.