title: Simultaneous growths of gold colloidal crystals.
abstract: Natural systems give the route to design periodic arrangements with mesoscopic architecture using individual nanocrystals as building blocks forming colloidal crystals or supracrystals. The collective properties of such supracrystals are one of the main driving forces in materials research for the 21st century with potential applications in electronics or biomedical environments. Here we describe two simultaneous supracrystal growth processes from gold nanocrystal suspension, taking place in solution and at the air-liquid interface. Furthermore, the growth processes involve the crystallinity selection of nanocrystals and induce marked changes in the supracrystal mechanical properties.
authors.affiliation: Université Pierre et Marie Curie and Centre National de la Recherche Scientifique, UMR 7070, LM2N, 4 Place Jussieu, 75005 Paris, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Goubet
authors.forename: Hervé
authors.initials: H
authors.lastname: Portalès
authors.forename: Cong
authors.initials: C
authors.lastname: Yan
authors.forename: Imad
authors.initials: I
authors.lastname: Arfaoui
authors.forename: Pierre-Antoine
authors.initials: PA
authors.lastname: Albouy
authors.forename: Alain
authors.initials: A
authors.lastname: Mermet
authors.forename: Marie-Paule
authors.initials: MP
authors.lastname: Pileni
mesh_terms: D003102:Colloids / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D003102:Colloids; D006046:Gold