Ligand-induced incompatible curvatures control ultrathin nanoplatelet polymorphism and chirality.

ABSTRACT: The ability of thin materials to shape-shift is a common occurrence that leads to dynamic pattern formation and function in natural and man-made structures. However, harnessing this concept to rationally design inorganic structures at the nanoscale has remained far from reach due to a lack of fundamental understanding of the essential physical components. Here, we show that the interaction between organic ligands and the nanocrystal surface is responsible for the full range of chiral shapes seen in colloidal nanoplatelets. The adsorption of ligands results in incompatible curvatures on the top and bottom surfaces of the NPL, causing them to deform into helicoïds, helical ribbons, or tubes depending on the lateral dimensions and crystallographic orientation of the NPL. We demonstrate that n

SUBMITTER: Monego D 

PROVIDER: S-EPMC10907275 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature