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Highly Ordered Good Crystalline ZnO-Doped WO3 Thin Films Suitable for Optoelectronic Applications

  • V. S. Kavitha
  • R. Jolly Bose
  • R. Sreeja Sreedharan
  • C. Sudarsanakumar
  • Radhakrishna Prabhu
  • V. P. Mahadevan PillaiEmail author
Technical Article


Highly ordered ZnO-doped WO3 thin films with good crystalline quality are prepared using radio frequency magnetron sputtering technique, and its morphological and structural properties are studied using various characterization tools such as field emission scanning electron microscopy, energy-dispersive x-ray spectroscopy, x-ray diffraction technique, micro-Raman spectroscopy, and x-ray photoelectron spectroscopy. Morphological analysis shows a smooth surface for pure film, whereas the ZnO-doped films presents a dense distribution of grains of larger sizes with well-defined grain boundary. X-ray diffraction studies reveal the enhancement of crystalline quality of the films with increase in ZnO doping concentration up to 5 wt.%, beyond which the crystalline quality gets deteriorated. A phase modification from a single monoclinic WO3 phase to mixed monoclinic WO3 and W18O49 phases is observed for films with higher ZnO doping concentrations.


Conflict of interest

The authors declares that they have no conflict of interest.


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • V. S. Kavitha
    • 1
  • R. Jolly Bose
    • 1
  • R. Sreeja Sreedharan
    • 1
  • C. Sudarsanakumar
    • 2
  • Radhakrishna Prabhu
    • 3
  • V. P. Mahadevan Pillai
    • 1
    Email author
  1. 1.Department of OptoelectronicsUniversity of KeralaKariavattom, ThiruvananthapuramIndia
  2. 2.School of Pure and Applied PhysicsMahatma Gandhi UniversityPriyadarsini Hills, KottayamIndia
  3. 3.School of EngineeringRobert Gordon UniversityAberdeenUK

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