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  Global Journal of Physical Chemistry. Volume 2, Issue 2 (2011) pp. 149-156
  Research Article Free Article
 
Hybrid nanocomposites based on silicon carbide: Electronic and electro-optical investigations
  Abdel Hadi Kassibaa, Malgorzata Makowska-Janusikb Johan Bouclea, Nicolas Erriena  
     
a Laboratoire de Physique de l’Etat Condensé – UMR CNRS 6087 Université du Maine- 72085 Le Mans Cedex 9 – France
b Institute of Physics, Al.Armii.Krajowej, 13/15, Jan Dulogosz University – Czestochowa 42 200 Poland

   
  Abstract  
  Nanostructured materials based on the wide band gap semiconductor Silicon Carbide (SiC) nanoparticles as isolated objects, embedded in polymer matrixes or functionalized by thin layer (~2 nm) of conducting polymers were realized. The physical properties of several nanocomposites were investigated including electrical, dielectric, optical and electro-optical features. The Electro-optical properties are marked by enhanced Pockels parameters values due to polymer-nanoparticles interfaces effects. On the other hand, hybrid core-shell functionalization of the nanoparticle surfaces are marked by enhanced electrical conductivities of the network associated to good thermo-mechanical behaviour. The physical origin of the electrical conductivity in these nanomaterials is discussed based on the dynamics of polarons in the hybrid nanocomposites.
     
  Keywords  
  Silicon carbide; Nanocomposites; EPR; Electro-optics; Core-shell nanostructures  
     
   
   
   
   
     

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