Features of spray-made lithium-doped zinc sulphide thin films

Authors

  • P. O. Offor Metallurgical and Materials Engineering Department, University of Nigeria, Nsukka, 410001 Nsukka, Nigeria
  • G. M. Whyte Department of Physics and Astronomy, University of Nigeria, Nsukka, 410001 Nsukka, Nigeria https://orcid.org/0000-0002-5152-095X
  • F. U. Whyte Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • A. D. Omah Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • S. N. Ude Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • C. C. Daniel-Mkpume Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • P. S. Nnamchi Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • C. S. Obayi* Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • I. Y. Suleiman Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • A. C. Nkele Department of Physics and Astronomy, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • U. C. Ogbuefi Department of Electrical Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • C. P. Ohanu Department of Electrical Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • B. A. Okorie Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria
  • F. I. Ezema Department of Physics and Astronomy, University of Nigeria Nsukka, 410001 Nsukka, Nigeria

DOI:

https://doi.org/10.20221/jnmsr.v2i1.10

Keywords:

Spray-made, Lithium, hexagonal, nanorod-like, zinc sulphide

Abstract

The work centered on the features of spray-made Lithium-doped Zinc sulphide (ZnS) thin films. Lithium-doped and undoped ZnS films with 1%, 3% and 5% Lithium concentrations were made. The features of the films were analyzed using x-ray diffraction (XRD), UV-Visible spectroscopy, scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Raman spectrometry, contact angle meter and Photoluminescence (PL) spectroscopy processes. The XRD analysis established the formation of a hexagonal phase for the samples. SEM showed nanodot-like and nanorod-like nanoparticles. The size of the particles was between 3.707 and 4.614 nm. FTIR exhibited the C=O stretching mode. The energy gap (Eg) ranged from 3.54 to 3.91 eV while the absorption coefficient is between 3.05 x 103 and 6.53 x 103 cm-1 at 3.0 eV. PL exhibited narrow band edge emission peak at 357 nm. A hydrophilic surface feature was identified. The films find application in optoelectronics and solar cells.

Author Biography

C. S. Obayi*, Department of Metallurgical and Materials Engineering, University of Nigeria Nsukka, 410001 Nsukka, Nigeria

*Corresponding author

Metallurgical and Materials Engineering Department,
University of Nigeria, Nsukka,
410001 Nsukka, Nigeria
camillus.obayi@unn.edu.ng

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Published

2023-05-22

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Offor, P. O., Whyte, G. M., Whyte, F. U., Omah, A. D., Ude, S. N., Daniel-Mkpume, C. C., … Ezema, F. I. (2023). Features of spray-made lithium-doped zinc sulphide thin films. Journal of Nano and Materials Science Research, 2(1). https://doi.org/10.20221/jnmsr.v2i1.10

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Vol. 2 No. 1 (2023): Maiden Edition

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