Articles
  • Fabrication and characterization of solution processable organosilane-modified colloidal titania nanoparticles and silica-titania hybrid films
  • Dong Jun Kang*, Go Un Park, Hyeon Hwa Lee, Myeong Sang Ahn and Hyo Yeol Park
  • Advanced Materials and Application Research Division, Korea Electrotechnology Research Institute, 28-1 Sungju-dong Changwon, Gyeongsangnam-do, 641-120, Korea
Abstract
Colloidal titania nanoparticles were synthesized by a simple sol-gel process. The obtained nanoparticles showed high crystallinity and were of the anatase type. These crystalline colloidal titania nanoparticles were organically modified using methyl- and glycidyl-grafted silanes in order to enhance their stability and solution processability. The stabilized colloidal titania nanoparticles could be dispersed homogeneously without aggregation and converted into silica-titania hybrid films with the heterogeneous Si-O-Ti bonds by a low-temperature solution process. The fabricated silica-titania hybrid films showed high transparency (~ 90%) in the visible range, and low RMS roughness (<1 nm). Therefore, the organosilane-modified crystalline colloidal titania nanoparticles can be used in solution-processable functional coatings for electro-optical devices.

Keywords: Titania nanoparticle, Organosilane, Silica-Titania, Hybrid.

This Article

  • 2012; 13(S1): 78-81

    Published on Aug 31, 2012

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