Impact of Annealing Temperature on Optical Properties of ZnS Thin Films Grown by Spray Pyrolysis Technique.

  • A.U. Moreh Department of Physics, Faculty of Science, Usmanu Danfodiyo University, Sokoto Nigeria
  • M. Momoh Department of Physics, Faculty of Science, Usmanu Danfodiyo University, Sokoto Nigeria
  • I. Buhari Department of Physics, Faculty of Science, Usmanu Danfodiyo University, Sokoto Nigeria
  • S.B. Sharafa Department of Physics, Faculty of Science, Usmanu Danfodiyo University, Sokoto Nigeria
  • Y. M. Ahijjo Department of Physics, Faculty of Science, Usmanu Danfodiyo University, Sokoto Nigeria
  • F. Sani Department of Physics, Faculty of Science, Usmanu Danfodiyo University, Sokoto Nigeria
Keywords: Spray pyrolysis, Annealing, ZnS, Band gap, Blue shif

Abstract

In this work we have studied the annealing effects on optical properties of ZnS thin films prepared on a soda lime glass substrate at 573K by spray pyrolysis technique. The spray solutions contains Zinc Chloride (ZncCl2) and Thiourea (SC(NH2)2) with molar concentration of 0.1M/L. The optical parameters such as absorbance, transmittance, band gap energy, refractive index and extinction coefficient for as-deposited films as well as films annealed at 573K and 673K were investigated by using AVANTES AVASPEC-2048 UV-VIS-NIR Spectrophotometer.

References

Karim, A., Arle, R.N. and Sayed, M. (2012). Studies on Structural and Optical Characterization of Zinc sulfide films by Chemical Spray Deposition. Research Expo International Multidisciplinary Research Journal, 2: 188-192.

Muhammad, A., Ehsan, T.A., Nirmal, P.K.G., Upul, W., Hamid, K., Huang, N.M., Misni, M., Zainudin, A. andMuhammad, M. (2013). Surface Morphological and Photo Electrochemical Studies of ZnS thin film Developed from single source Precursors by Aerosol assisted Chemical Vapour Deposition. Thin Solid Films. 540: 1–9.

Eman, M. N. (2014). Surface Morphology and Structural Properties of ZnS and ZnS:Al thin films fabricated by vacuum evaporation technique. International Journal of Innovative Research in Science, Engineering and Technology, 3: 8114-8120.

Mukherjee, A. and Mitra, P. (2012). Preparation of Zinc Sulphide thin Film by Spin Coating and their Characterization. Journal of Physical Sciences, 16: 171-175.

Nabiyouni, G., Sahraei, R., Toghiany, M.,Majles, A.M.H. and Hedayati, H. (2011). Preparation and characterisation of Nanostructured ZnS thin films grown on glass and n-type Si-substrate using a new Chemical Bath deposition Technique. Review of Advanced Material Science, 27: 52-57.

Bloss, W.H., Pfisterer, F., Schock, H.W. K.W. Boer, J.A. Duffie (1988), Advances in Solar Energy, An Annual Review of Research and Development. American Solar Energy Soc. Inc., New York,4: 275.

Tong, W., Wagner, B.K., Tran, T.K., Ogle, W., Park, W., and Summer, C.J. (1996). Kinetics of Chemical Beam Epitaxy for High Quality ZnS Film Growth. Journal of Crystal Growth, 164: 202.

]8] Ndukwe, I.C. (1996). Characterization and Applications of Zinc Sulphide Thin Films grown by Solution Growth. Solar Energy Materials and Solar Cells, 40: 123.

Hasse, M.A., Qiu, J., Depuydt, J.M., Cheng, H. (1991). Blue-green laser diode.Appl. Phys. Lett., 59: 1272. Hassan, M.S. (2012). Structural and optical properties of ZnS, PbS, Zn1-xPdx-1, ZnxPb1-xS and PbZnS1-x thin film. Indian journal of pure and applied Physics, 10: 380-386.

Nadeem, M.Y. and Waqas, A. (2000). Optical Properties of ZnS Thin Films. Turk J Phy, 24: 651- 659.

Adel, H.O.A. and Mustafa, D.J. (2014). Characteristics of Nanocrystalline ZnS thin films grown on glass with different Zn ion concentrations by CBD technique IOSR Journal of Applied Physics, 6: 27- 35

Nabeel, A. B., Nidhal, N. J. and Nadir, F.H. (2014). Optical and dispersion parameters of ZnS Thin Films prepared by Flash Evaporation Method. International Letters of Chemistry, Physics and Astronomy, 39: 52-63
Published
2015-10-31
Section
Original Article