Formation and Study of the Nanostructured CuAl0.5Ga0.5Te2 Synthesized by Mechanical Alloying Processing

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• 作者：H. Sehli (1)
  M. Benabdeslem (1)
  N. Benslim (1)
  L. Bechiri (1)
  H. Ayed (1)
  A. Djekoun (1)
  M. Boujnah (2)
  X. Portier (3)
  S. Ammar (4)
  H. Lecoq (4)
  S. Novack (4)
  P. Decorse (4)
  
• 刊名：JOM Journal of the Minerals, Metals and Materials Society
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：66
• 期：6
• 页码：985-991
• 全文大小：<len>
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• 作者单位：H. Sehli (1)
  M. Benabdeslem (1)
  N. Benslim (1)
  L. Bechiri (1)
  H. Ayed (1)
  A. Djekoun (1)
  M. Boujnah (2)
  X. Portier (3)
  S. Ammar (4)
  H. Lecoq (4)
  S. Novack (4)
  P. Decorse (4)
  
  1. Laboratoire De Recherche D’études des Surfaces et Interfaces de la Matière Solide (LESIMS), Département de Physique, Faculté des Sciences, Université de Annaba, 23200, Sidi Amar, Algeria
  2. Laboratory of Magnetism and Physics of High Energies, URAC 12, Department of Physics, Faculty of Sciences, Mohammed V-Agdal University, B.P. 1014, Rabat, Morocco
  3. Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), Université de Caen, 6-Bd du Maréchal Juin, 14050, Caen, France
  4. Laboratoire Interfaces Traitements Organisation et Dynamique des Système (ITODYS), Université Paris Diderot - Paris 7, Paris, France
  
• ISSN：1543-1851

文摘

Nanostructured chalcopyrite CuAl0.5Ga0.5Te2 has been prepared by milling a mixture of reactants, copper, aluminum, gallium, and tellurium. The crystal structure, morphology, and composition of the prepared samples have been characterized by means of x-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and transmission electron microscopy (TEM). X-ray diffraction has revealed the presence of the characteristic peaks of the chalcopyrite phase for the CuAl0.5Ga0.5Te2-milled powders. The crystallite size and internal strain have been evaluated by XRD patterns using the Williamson–Hall method. The average particle size decreases as the milling time is prolonged, while the lattice parameters and internal strain increase. The TEM confirmed the formation of CuAl0.5Ga0.5Tee nanoparticles. The bandgap has been found to increase from 1.42?eV up to 1.45?eV as the process time varies, respectively, from 60?min to 360?min.