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Spectral Analysis of Amorphous Thin Films of MnS Obtained Chemically by Varying Solution Concentrations

Author Affiliations

  • 1 Department of Physics, Alvan Ikoku Federal College of Education, Owerri, NIGERIA
  • 2 Department of Physics, Faculty of Physical Sciences and Information Technology. College of Natural and Applied Sciences, University of Port Harcourt, NIGERIA

Res. J. Physical Sci., Volume 2, Issue (2), Pages 1-8, May,4 (2014)

Abstract

Binary thin films of Manganese Sulphide (MnS) were chemically grown on glass substrates at 300k by varying molar concentrations of solution. The structure, morphology, optical properties, elemental composition and thickness of the grown films were analyzed using x-ray diffractometer, scanning electron microscope, Uv-Vis spectro photometric analysis, Rutherford Backscattering Spectrometry and surface profiler. From the study, all the as-deposited films showed amorphous nature with no prominent peaks. Transmittance was found to increase with decrease in solution concentration while absorbance showed the inverse. A peak transmittance of 76.88% was obtained for film with least solution concentration while peak absorbance of 93.40% was obtained for film with highest solution concentration. The energy gap which ranged between 2.99ev-3.30ev, showed increase with solution concentration and thickness. Possible areas of application based on their properties have been discussed.

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