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Gacoin Thierry

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CNRS Senior Scientist, CNRS Chemistry,
Professor in Ecole Polytechnique / Institut Polytechnique de Paris,
Scientific advisor of Saint-Gobain Research Paris,
Scientific co-director of the Interdisciplinary Center M4S - Materials for Society of IP Paris,
Head of the Solid State Chemistry Group of LPMC

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My Research (in many cases in strong collaboration with other colleagues)

My fields of interest concern the elaboration and the understanding of structure-property relationships in nanostructured oxide materials with special attention paid to colloidal nanocrystals and functionnal coatings exhibiting outstanding physical properties.

  • Research Themes :
    • functional materials,
    • Liquid routes for the elaboration of colloidal nanocristals and thin films (sol-gel, precipitation, colloid chemistry)
    • Optical properties
    • Micro/nanostructure impact on optical properties : size-shape-surface effects, dielectric microstructure
  • Mains subjects of investigations
    • Rare earth doped luminescent nanocristals
    • Nanorods with anisotropic optical properties
    • Light emiting thin films
    • Nanostructured dielectric thin films (high/low refractive index, birefringence, Bragg mirrors, photonic crystals)
    • metal/dielectric nanocomposites with transport and plasmonic properties
  • Main compounds of interest
    • Nanocristals : quantum dots - CdS, CdS:Mn ; Nanophosphors - YVO4:Ln, NaYF4:Ln, LaPO4:Ln, YAG:Ce ; nanoSHG - KTP ; nanoplasmonics Ag, Au, CsWO3 ; photocatalytics TiO2, TiO2:N ; nanodiamond
    • sol-gel silica, silicates, TiO2
    • meso/marcoporous silica coatings
    • organic/inorganic hybrid materials
    • Silica/TiO2/Ag nanocomposites