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Design of photonic structures by sol–gel-derived silica nanospheres

Authors
Journal
Journal of Non-Crystalline Solids
0022-3093
Publisher
Elsevier
Publication Date
Volume
353
Identifiers
DOI: 10.1016/j.jnoncrysol.2006.10.034
Keywords
  • Photonic Bandgap
  • Colloids
  • Nanoparticles
  • Luminescence
  • Optical Spectroscopy
  • Time Resolved Measurements
  • Silica

Abstract

Abstract Sol–gel processing was used to obtain monosized silica spheres of 270 nm in diameter. Starting from these spheres, two different systems have been fabricated: (i) 3D Photonic Crystals by means of vertical deposition and evaporation-assisted sedimentation deposition methods; (ii) core-shell-like Er 3+-activated silica spheres, where the core is the silica sphere and the shell is an Er 2O 3–SiO 2 coating. Optical and spectroscopic assessment, as well as morphological and structural characterization of the systems, have been performed.

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