title: Spheres growing on a sphere: a model to predict the morphology yields of colloidal molecules obtained through a heterogeneous nucleation route.
abstract: Through the heterogeneous nucleation of polymer nodules on a surface-modified silica particle, the high-yield achievement of hybrid colloidal molecules with a well-controlled multipod-like morphology was recently demonstrated. However, as the formation mechanism of these colloidal molecules has not been completely understood yet, some opportunities remain to reduce the tedious empirical process needed to optimize the chemical recipes. In this work, we propose a model to help understand the formation mechanism of almost pure suspensions of well-defined colloidal molecules. The outcomes of the model allow proposing probable nucleation growth scenario able to explain the experimental results. Such a model should make easier the determination of the optimal recipe parameters for a targeted morphology. The reasonably good agreements between the model and the experimental results show that the most important processes have been captured. It is thus a first step toward the rational design of large quantities of chemically prepared colloidal molecules.
authors: CEA Saclay, IRAMIS, Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire, Gif sur Yvette, France. antoine.thill@cea.fr
authors: Antoine
authors: A
authors: Thill
authors: Anthony
authors: A
authors: Désert
authors: Sarah
authors: S
authors: Fouilloux
authors: Jean-Christophe
authors: JC
authors: Taveau
authors: Olivier
authors: O
authors: Lambert
authors: Muriel
authors: M
authors: Lansalot
authors: Elodie
authors: E
authors: Bourgeat-Lami
authors: Olivier
authors: O
authors: Spalla
authors: Luc
authors: L
authors: Belloni
authors: Serge
authors: S
authors: Ravaine
authors: Etienne
authors: E
authors: Duguet