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Properties of Al-doped zinc oxide and In-doped zinc oxide bilayer transparent conducting oxides for solar cell applications
Materials Letters
  • Marikkannan Murugesan, Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Tamil Nadu, Madurai 625021, India
  • Dinesh Arjunraj, Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Tamil Nadu, Madurai 625021, India
  • J Mayandi, Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Tamil Nadu, Madurai 625021, India
  • Vishnukanthan Venkatachalapathy, Department of Physics, Centre for Materials Science and Nanotechnology, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, Norway
  • Joshua M. Pearce, Michigan Technological University
Document Type
Article
Publication Date
7-1-2018
Abstract

Novel aluminum and indium doped zinc oxide (ZnO) bilayer transparent conducting oxide thin films was fabricated by simple sol-gel spin coating method and post-annealed at 500 °C for an hour under nitrogen ambient for solar cell applications. The structural, electrical and optical properties of both the as-deposited and annealed bilayer thin films were characterized. X-ray diffraction studies show a hexagonal wurtzite-type structure of ZnO with (0 0 2) orientation, which enhanced with annealing. In atomic force microscopy studies, minimum surface roughness was attained for Al-doped ZnO (AZO)/In-doped ZnO (IZO) bilayer TCO film compared to IZO/AZO bilayer film. The AZO/IZO film sheet resistance improved to 0.057 M ohm/square after post-annealing, while the single layer AZO film sheet resistance degraded upon annealing in nitrogen atmosphere. All the films had an average transmittance in the visible region over 96%.

Publisher's Statement

© 2018 Elsevier B.V. All rights reserved. Publisher's version of record: https://doi.org/10.1016/j.matlet.2018.03.097

Citation Information
Marikkannan Murugesan, Dinesh Arjunraj, J Mayandi, Vishnukanthan Venkatachalapathy, et al.. "Properties of Al-doped zinc oxide and In-doped zinc oxide bilayer transparent conducting oxides for solar cell applications" Materials Letters Vol. 222 (2018) p. 50 - 53
Available at: http://works.bepress.com/jmpearce/207/