Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis of Monodisperse Spherical SiO2 and Self-Assembly for Photonic Crystals

  • Lee, Byung-Kee (Department of Materials and Science, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Jung, Young-Hwa (Department of Materials and Science, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Kim, Do-Kyung (Department of Materials and Science, Korea Advanced Institute of Science and Technology (KAIST))
  • Published : 2009.09.30
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Abstract

Monodisperse spherical $SiO_2$ particles of various sizes ($\sim$350 nm and $\sim$800 nm) and size distributions were synthesized from TEOS and MTMS. The particle size and size distribution were controlled by changing the volume ratio of water to ethanol and the reaction temperature. Narrow-sized $SiO_2$ particles with $\sim$3% size distribution were obtained. Self-assembly of the $SiO_2$ particles for photonic crystals were performed by the solvent evaporation method. The number of ordered $SiO_2$ layers can be controlled by changing the amount of the dispersed $SiO_2$ volume fraction in the solvent.

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