Perovskite particles and nanostructures by self-assembly (Abstract/Poster in atti di convegno)

Type
Label
  • Perovskite particles and nanostructures by self-assembly (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Calderone V. R.; Testino A.; Buscaglia M. T.; Viviani M.; Buscaglia V.; Nanni P. (2006)
    Perovskite particles and nanostructures by self-assembly
    in Electroceramics X International Conference on Electroceramics, Toledo, Spain
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Calderone V. R.; Testino A.; Buscaglia M. T.; Viviani M.; Buscaglia V.; Nanni P. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Electroceramics X International Conference on Electroceramics (Toledo, Spain, 18-22 June 2006). (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Controlled self-organization of nanocrystals in aqueous media can be a powerful tool to obtain (nano)particles and more complex architectures with well-defined morphology and new modified properties. Aggregation of nanocrystals produces polycrystalline assemblies which can be ordered or disordered. The oriented aggregation of nano buildings blocks overcomes the classic concept of crystal growth, which is typically thought to accur via atom-by-atom or monomer-to-monomer addition of existing nucleous. Secondary nucleation on the surface of existing crystals represents a further mechanism for the growth of particles with some level of internal organization. We will show some examples of self-assembly processes in the synthesis of BaTiO(3) and SrTiO(3) mesocrystals from aqueous suspensions of amorphous titanium hydroxide. The assembly process can be controlled by varying the temperature and the concentration of the solution as well as by introducing suitable organic molecules. Core-shell structures can be obtained when the assembly process occurs at the surface of template particles suspended in the solution. The coating of BaTiO(3) spherical particles with SrTiO(3) and BaZrO(3) nanocrystals and the possible application of this process in the field of dielectric materials will be discussed. (literal)
Titolo
  • Perovskite particles and nanostructures by self-assembly (literal)
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