Journal of Materials Science: Materials in Electronics

, Volume 28, Issue 17, pp 12523–12534 | Cite as

Structural, morphological, optical and electrical properties of spray deposited zinc doped copper oxide thin films

  • Meherun NesaEmail author
  • Mehnaz Sharmin
  • Khandker S. Hossain
  • A. H. Bhuiyan


Nanostructured spray deposited zinc (Zn) doped copper oxide (CuO) thin films were characterized by employing X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX), atomic force microscopy (AFM) and ultraviolet–visible–near infrared (UV–Vis–NIR) spectroscopy. XRD patterns of CuO and Zn doped CuO thin films indicated monoclinic structure with the preferred orientation along \(\left( {\bar 111} \right)\) plane. Maximum value of crystallite size is found about 28.24 nm for 5 at% Zn doped CuO thin film. In FESEM images, nanoparticles were observed around the nucleation center. EDX analysis confirms the presence of all component elements in CuO and Zn doped CuO thin films. Analysis by AFM of CuO and Zn doped CuO thin films figured out decrease of surface roughness due to Zn doping. UV–Vis–NIR spectroscopy showed that CuO and Zn doped CuO thin films are highly transparent in the NIR region. Optical band gap of CuO thin films decreased with substrate temperature and that of Zn doped CuO thin films increased with Zn concentration. Refractive index of CuO and Zn doped CuO thin films raised with photon wavelength and became constant in the NIR region. 5 at% Zn doped CuO thin film showed the highest optical conductivity and the lowest electrical resistivity at room temperature.


Field Emission Scanning Electron Microscopy Field Emission Scanning Electron Microscopy Image Spray Pyrolysis Technique Monoclinic Crystal Structure Copper Oxide Thin Film 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors are thankful to the authorities of Bangladesh University of Engineering and Technology and Ministry of Science and Technology, Bangladesh, for providing necessary support to this research work. The authors express sincere gratitude to Prof. Dr. Jiban Podder, Dept. of Physics, BUET for fruitful discussion. One of the authors gratefully acknowledges support from International Science Program (ISP), Uppsala University, Sweden.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of PhysicsBangladesh University of Engineering and TechnologyDhakaBangladesh
  2. 2.Department of PhysicsUniversity of DhakaDhakaBangladesh

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