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  Global Journal of Physical Chemistry. Volume 2, Issue 2 (2011) pp. 88-91
  Research Article Free Article
 
Preparation and characterization of TiO2 thin films for photovoltaic applications
  L. Boulkaddata, A. Elfanaouia, E. Elhamria, M. Meddaha, A. Ihlala, K. Bouabida, A. Benlhachemib, L. Bazzib, X. Portierc  
     
a Laboratoire Matériaux et Energies Renouvelables (LMER) Université Ibn Zohr Dép. Physique Faculté des sciences B.P.8106, Hay Dakhla, 80000 Agadir, Morocco
b Laboratoire des Matériaux et environnement (LME) Faculté des Sciences., BP 8106 Agadir, Morocco
c CIMAP, ISMRA, Bd Mal Juin, 14050, Caen, France

   
  Abstract  
  The present paper explores the effect of the annealing temperature on the structural and optical properties of TiO2 thin films deposited on glass substrate by sol-gel spin-coating. Titanium isopropoxide TTIP was used as a precursor. The obtained films were annealed at different temperatures scaling from 300 to 400°C in air for 1 hour. The X-ray diffraction (XRD) confirms the presence of the anatase structure upon annealing at 400°C. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) show that the surface morphology was uniform and granular. A high optical transmission value was found to be about 80% using UV-Vis-NIR spectrophotometry measurements. An indirect band gap value around 3.6 eV was measured.
     
  Keywords  
  Anatase; Rutile; Titanium dioxide; Optical properties; Sol–gel; Spin coating  
     
   
   
   
   
     

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