Research Article

Synthesis and Surface Characterisation of Cu-Doped Tin Oxide Thin Film for Optoelectronic Applications.

Adewumi Olusegun Emmanuel1*, Taleatu Bidini Alade1, Adewinbi Saheed Adekunle2, Busari Rafiu Adewale3, Oyedotun Kabir Oyeniran4, Omotoso Ezekiel1
1 Department of Physics and Engineering Physics, Obafemi Awolowo University, Ile-Ife, Nigeria
2 Department of Physics, Osun State University, Osogbo, Osun State, Nigeria
3 Centre for Energy Research and Development, Obafemi Awolowo University, Ile-Ife, Nigeria
4 Department of Physics, Institute of Applied Materials, Carbon Technology and Materials, University of Pretoria, Pretoria 0002, South Africa
* Corresponding author: adewumiolusegunemmanuel@njmse.msn.ng
Published: Jun, 2020
Pages: 18-23

Abstract

Copper doped tin oxide thin film was synthesised by electrodeposition technique. Film growth was maintained at  cathodic potential of 1.60 V at a varied deposition time. Surface morphological studies of the deposited films were  achieved by field emission scanning electron microscopy (FE-SEM). The scanning electron microscopy image revealed  evenly distributed films, across the substrate with rice-like or dome-like particles, depending on the deposition time.  Post-annealing enhanced films crystallinity and particles agglomeration. Energy disperse X-ray spectra revealed the  elemental constituents present in the film. The results obtained from electrical characterisation of the samples showed  the ohmic properties of the deposited sample. X-ray diffraction results indicated that samples are polycrystalline in  nature with tetragonal rutile structure. The average interplanar spacing and crystallite size of the samples were estimated  as 2.93 Å and 202.5 Å respectively. Optical characterisation of the samples showed that absorption and transmittance  across the ultraviolet-visible spectrum range depend on deposition time. The estimated energy band gaps of 3.06 eV  suggested the films as good candidates for transparent contact electrodes in optoelectronic applications.

Keywords

Electrodeposition Annealing Doping Crystallinity Morphology Energy band gap

References

  1. Anthony, S. P., Lee, J. I., and Kim, J. K. (2007). "Tuning optical band gap of vertically aligned ZnO nanowire arrays grown by homoepitaxial electrodeposition". Appl. Phys. Lett., 90(10): 103107.
  2. Bagheri, S., Chandrappa, K. G., and Hamid, S. A. (2013). "Facile synthesis of nano-sized ZnO by direct precipitation method". Der Pharma Chemica, 5(3): 265-270.
  3. Bagheri-Mohagheghi, M. M., and Shokooh-Saremi, M. (2004). "The influence of Al doping on the electrical, optical and structural properties of SnO2 transparent conducting films deposited by the spray pyrolysis technique". J. Phys. D: Appl. Phys., 37(8): 1248.
  4. Benhalilaba, M., Benouis, C. E., Boubaker, K., Amlouk, M., and Amlouk, A. (2011). "A new guide to thermally optimised doped oxides monolayer spray-grown solar cells: the Amlouk-Boubaker optothermal expansivity. In Solar Cells-New Aspects and Solutions". Intech Open: 112-133
  5. Benzitouni, S., Zaabat, M., Khial, A., Rechem, D., Benaboud, A., Bouras, D., and Coste, R. (2016). "High sensitivity of porous Cu-doped SnO2 thin films to methanol". Adv. Nanoparticles, 5(2): 140.
  6. Chopra, K. L., Paulson, P. D., and Dutta, V. (2004). "Thin film solar cells: an overview". Prog. Photovoltaics Res. Appl., 12(2-3): 69-92.
  7. Choudhury, B., Choudhury, A., and Borah, D. (2015). "Interplay of dopants and defects in making Cu doped TiO2 nanoparticle a ferromagnetic semiconductor". J. Alloys and Compd, 646: 692-698.
  8. Cullity, B.D and Stock S.R (1956). The direction of diffracted beam. Elements of X-ray diffraction, Addison-Wesley Publishing Co., USA: 78-103
  9. Gorig, M., and Breyer, C. (2016). "Energy learning curves of PV systems". Environ. Prog. Sust. Energy, 35(3): 914-923.
  10. Guascito, M. R., Filippo, E., Malitesta, C., Manno, D., Serra, A., and Turco, A. (2008). "A new amperometric nanostructured sensor for the analytical determination of hydrogen peroxide". Biosens. Bioelectr., 24(4): 1057-1063.
  11. Gultekin, D., Alaf, M., Guler, M. O., and Akbulut, H. (2012). "Synthesis of ZnO, SnO2 Nanoparticles and Preparation of ZnO-SnO2 Nanocomposites". J. Nanosci. Nanotechnol., 12(12): 9175-9182.
  12. Hosono, H. (2007). "Recent progress in transparent oxide semiconductors: Materials and device application". Thin Solid Films, 515(15): 6000-6014.
  13. Jiang, D. Y., Shen, D. Z., Liu, K. W., Shan, C. X., Zhao, Y. M., Yang, T. and Zhang, J. Y. (2008). "Effect of post annealing on the band gap of MgxZn1-xO thin films". Semiconduct. Sci. Technol., 23(3): 035002.
  14. Jones, D., and Lettington, A. H. (1972). "The electronic band structures of the wide band gap semiconductors GaN and A1N". Solid State Comm., 11(5): 701-705.
  15. Kabir, E., Kumar, P., Kumar, S., Adelodun, A. A., & Kim, K. H. (2018). "Solar energy: Potential and future prospects". Ren. Sust. Energy Reviews, 8(2): 894-900.
  16. Luque, A., and Hegedus, S. (2011). "Handbook of Photovoltaic Science and Engineering". John Wiley & Sons. New Jersey, USA: 332-328
  17. Machol, B., and Rizk, S. (2013). "Economic value of US fossil fuel electricity health impacts". Environ. Int., 5(2): 75-80.
  18. MArquez, E., Ramirez-Malo, J., Villares, P., Jimenez-Garay, R., Ewen, P. J. S., and Owen, A. E. (1992). "Calculation of the thickness and optical constants of amorphous arsenic sulphide films from their transmission spectra". J. Phys. D: Appl. Phys., 25(4): 535.
  19. Patterson, T. F., Thompson III, G. R., Denning, D. W., Fishman, J. A., Hadley, S., Herbrecht, R. and Segal, B. H. (2016). "Practice guidelines for the diagnosis and management of aspergillosis: 2016 update by the Infectious Diseases Society of America". Clinical Infectious Diseases, 63(4): 1-60.
  20. Pradhan, D. and Leung, K. T. (2008). "Controlled growth of two-dimensional and one-dimensional ZnO nanostructures on Indium Tin Oxide coated glass by direct electrodeposition". Langmuir, 24(17): 9707-9716.
  21. Resch, G., Held, A., Faber, T., Panzer, C., Toro, F., and Haas, R. (2008). "Potentials and prospects for renewable energies at global scale". Energy policy, 36(11): 4048-4056.
  22. Weisser, D. (2007). "A guide to life-cycle greenhouse gas (GHG) emissions from electric supply technologies". Energy, 32(9): 1543-1559.
  23. Xu, Y., and Schoonen, M. A. (2000). "The absolute energy positions of conduction and valence bands of selected semiconducting minerals". Am. Mineralogist, 85(3-4): 543-556.
  24. Zhang, S., Li, W., Yao, L., Pan, Y., Shen, F., Xiao, R. and Ma, Y. (2013). "Enhanced proportion of radiative excitons in non-doped electro-fluorescence generated from an imidazole derivative with an orthogonal donor-acceptor structure". Chem. Comm., 49(96): 11302-11304.
How to Cite

Emmanuel, A. O., Alade, T. B., Adekunle, A. S., Adewale, B. R., Oyeniran, O. K., & Ezekiel, O. (2020). Synthesis and Surface Characterisation of Cu-Doped Tin Oxide Thin Film for Optoelectronic Applications.. Nigerian Journal of Materials Science and Engineering, 10(1), 18-23.

A. O. Emmanuel, T. B. Alade, A. S. Adekunle, B. R. Adewale, O. K. Oyeniran, and O. Ezekiel, "Synthesis and Surface Characterisation of Cu-Doped Tin Oxide Thin Film for Optoelectronic Applications.," Nigerian Journal of Materials Science and Engineering, vol. 10, no. 1, pp. 18-23, June 2020.

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