title: Precise control over shape and size of iron oxide nanocrystals suitable for assembly into ordered particle arrays.
abstract: Here we demonstrate how monodisperse iron oxide nanocubes and nanospheres with average sizes between 5 and 27 nm can be synthesized by thermal decomposition. The relative importance of the purity of the reactants, the ratio of oleic acid and sodium oleate, the maximum temperature, and the rate of temperature increase, on robust and reproducible size and shape-selective iron oxide nanoparticle synthesis are identified and discussed. The synthesis conditions that generate highly monodisperse iron oxide nanocubes suitable for producing large ordered arrays, or mesocrystals are described in detail.
authors.affiliation: Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Sweden.
authors.forename: Erik
authors.initials: E
authors.lastname: Wetterskog
authors.affiliation: Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.
authors.forename: Michael
authors.initials: M
authors.lastname: Agthe
authors.affiliation: Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.
authors.forename: Arnaud
authors.initials: A
authors.lastname: Mayence
authors.affiliation: Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.
authors.forename: Jekabs
authors.initials: J
authors.lastname: Grins
authors.affiliation: Department of Chemical Engineering, Northeast Dianli University, People's Republic of China.
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.affiliation: Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata, India.
authors.forename: Subhasis
authors.initials: S
authors.lastname: Rana
authors.affiliation: SP Technical Research Institute of Sweden, Chemistry, Materials and Surfaces, Stockholm, Sweden.
authors.forename: Anwar
authors.initials: A
authors.lastname: Ahniyaz
authors.affiliation: Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.
authors.forename: German
authors.initials: G
authors.lastname: Salazar-Alvarez
authors.affiliation: Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.
authors.forename: Lennart
authors.initials: L
authors.lastname: Bergström
keywords: assembly; iron oxide; mesocrystal; nanoparticles; superlattice; synthesis