Atomic Structure of Colloidal Semi Conducting Nanoplatelets with High Energy X-ray Scattering

Ultrathin semi-conducting colloidal nanoplatelets have outstanding optical properties which gather increasing scrutiny from various communities. Their thickness being very small (around 1 nm), their shape strongly depends on the organic ligand monolayer coated at their surface which can cause surface stress and deformation. We aim at getting an atomic resolution of the structure of the crystalline core depending on the ligand structure using high energy X-ray diffraction in order to better understand the ligand induced deformation. Ultimately this new fundamental understanding of ligand induced shape morphing will lead to the predictive design of original shapes.