Journal of Nanoparticle Research

, Volume 10, Issue 7, pp 1225–1229 | Cite as

A version of Stöber synthesis enabling the facile prediction of silica nanospheres size for the fabrication of opal photonic crystals

  • Diego Adolfo Santamaría Razo
  • Luca Pallavidino
  • Edoardo Garrone
  • Francesco Geobaldo
  • Emiliano Descrovi
  • Angelica Chiodoni
  • Fabrizio Giorgis
Brief Communication

Abstract

A sol-gel synthesis procedure based on the method proposed by Stöber et al. (J Colloid Interface Sci 26:302–315, 1968) has been adopted for the one-step preparation of mono-dispersed silica nanospheres. An excellent control of the particle diameter over a wide range is obtained by varying the amount of silicon alkoxide only, while the concentration of all other components is kept fixed: this allows the fabrication of artificial opals with a finely tuned and precisely predictable lattice parameter.

Keywords

3-D Photonic crystals Synthetic opals Bragg reflection peak Monodispersed silica nanospheres Self assembly Colloids 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Diego Adolfo Santamaría Razo
    • 1
  • Luca Pallavidino
    • 1
  • Edoardo Garrone
    • 1
  • Francesco Geobaldo
    • 1
  • Emiliano Descrovi
    • 2
  • Angelica Chiodoni
    • 2
  • Fabrizio Giorgis
    • 2
  1. 1.Materials Science and Chemical Engineering DepartmentPolitecnico of TorinoTorinoItaly
  2. 2.Materials and Microsystems Laboratory χLab-Physics DepartmentPolitecnico of TorinoTorinoItaly

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