UMR 5182

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Pr. Jonathan OWEN

Colombia University, New York, USA
When

Oct 03, 2019 à 10:30 AM

Where

André Collet

Contact

B. Abécassis

Study of colloidal nanocrystals formation

Modern colloidal nanocrystals can be synthesized with extraordinary precision despite a limited understanding of the mechanisms that provide this control. My talk will address the underpinning pathways that govern these essential aspects of nanocrystal structure. Using in situ absorption and x-ray scattering methods, we have measured the kinetics of nucleation in the synthesis of colloidal lead chalcogenide and indium phosphide nanocrystals. These studies have shown that small crystals are inherently more reactive toward growth than larger ones. I will discuss the implications of this finding and how this is relevant to the synthesis of several modern colloidal nanomaterials.