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Effects of lithium doping on: microstructure, morphology, nanomechanical properties and corrosion behaviour of ZnO thin films grown by spray pyrolysis technique

  • Mohamed Salah
  • Samir AziziEmail author
  • Abdelwaheb Boukhachem
  • Chokri Khaldi
  • Mosbah Amlouk
  • Jilani Lamloumi
Article
  • 38 Downloads

Abstract

Li-doped ZnO thin films were prepared on glass substrate by a chemical spray pyrolysis method, in the temperature of 460 °C. The effects of Li content on the microstructural, morphological and mechanical characteristics of the doped (ZnO:Li) thin films were also examined. The XRD study showed a sharp preferred c-axis orientation and showed that (ZnO:Li) films have a würtzite structure and grow principally along the c-axis orientation with a preferred orientation (002). The film morphology was examined by (AFM) and (SEM). Results of SEM observations showed that sprayed thin films, exhibited uniform and harmonious texture. Furthermore, ZnO:Li thin films revealed uniform and spherical shaped crystallites with an approximate medium size of 200 nm. AFM characterization demonstrated an amelioration of the surface roughness of the ZnO:Li thin films. The mechanical characteristics of ZnO:Li thin films have been investigated by the nano-indentation experiment. It has been found that the addition of lithium enhances the hardness and Young’s modulus. On the other hand, the corrosion behaviour of Li-doped thin films is examined in chloride solutions. The electrochemical experiments confirmed that the lithium doping could ameliorate the anti-corrosion performance.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Mohamed Salah
    • 1
  • Samir Azizi
    • 1
    Email author
  • Abdelwaheb Boukhachem
    • 2
  • Chokri Khaldi
    • 1
  • Mosbah Amlouk
    • 2
  • Jilani Lamloumi
    • 1
  1. 1.Université de Tunis, ENSIT, LR99ES05TunisTunisia
  2. 2.Faculté des Sciences de Tunis, Unité de Physique des Dispositifs à Semi-ConducteursUniversité de Tunis El ManarTunisTunisia

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