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    STUDIA CHEMIA - Issue no. 1 / 2012  
         
  Article:   PREPARATION AND CHARACTERIZATION OF QUASI-ONE DIMENSIONAL ATO FILMS DEPOSITED ON GLASS SUBSTRATE.

Authors:  IRINA TARSICHE, DORIN MANCIULA, LASZLO TRIF, GYULA TOLNAY, FIAMMETTA KORMOS.
 
       
         
  Abstract:  

The antimony doped tin-dioxide (ATO) thin nanostructured films are known for their wide range of applications. The paper presents the preparation and characterization of quasi-one dimensional ATO films deposited on glass substrate. Films have been prepared by using the sol-gel one step multipledip-coating and spray pyrolysis techniques. Sb concentration in the precursor solution was 5 and 15 mol%, respectively. The crystalline structure of the ATO films was studied by X-ray Diffraction (XRD) which showed their polycrystalline structure with peaks belonging to the tetragonal rutil structure of SnO2. Atomic Force Microscopy (AFM) revealed the films nanostructured morphology and different geometrical shapes of the nanoparticles depending on the route of preparation and doping degree. X-ray Photoelectron Microscopy (XPS) measurements showed that the main components at the surface of the films are: Sn, Sb, O, Cl and also that Sn and Sb are present in their oxidated state Sn4+ and Sb5+ , respectively.

Keywords: ATO film, sol-gel technique, spray pyrolysis, crystalline structure, morphology.

 
         
     
         
         
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