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Effect of Film Thickness on the Transmittivity of Chemical Bath Synthesized PbS Thin Film

Author Affiliations

  • 1Department of Industrial Physics, Anambra State University, Uli, NIGERIA

Res. J. Engineering Sci., Volume 2, Issue (2), Pages 23-25, February,26 (2013)

Abstract

Thin films of PbS were deposited at room temperature on glass substrates immersed in a bath mixture containing aqueous solutions of lead nitrate [Pb(NO3)]2, and thiourea (SC(NH2)2), using EDTA disodium salt as a complexing agent and ammonia solution as a pH adjuster at 300K. Optical and surface morphology of the films were investigated using a Janway 6405 UV/ Visible spectrophotometer and an Olympus optical microscope. The optical microscopy image showed that this film has uniform, small crystal size and covered the entire substrate surface completely. The films also have high transmittance in the visible/ near infrared region of the electromagnetic spectrum. We also established that increase in the film thickness in the chemical bath deposition of PbS thin film reduces the transmittance of the film.

References

  1. Dinghua B., Haoshuang G. and Anxiang K., Sol-gel Derived c-axis Oriented ZnO Thin Films, Thin solid films,312, 37-39 (1998)
  2. SangWoo W., Hongkyu J., SangGon K., ManHO C., Kwangbo J. and ChungNam W., Properties of ZnO Thin Films Grown at Room Temperature by using Ionized Cluster Beam Deposition, Journal of the Korean physical society, 37 ( 4), 456-460 (2000)
  3. Sun X.W. and Kwok H.S., Optical Properties of Epitaxially Grown Zinc Oxide Films on Sapphire by Pulsed Laser Deposition, Journal of Appl. Phys.,86, 408-411 (1999)
  4. Subramanyam T.K., Naidu B.S.A. and Uthanna S., Physical Properties of Zinc Oxide Films Prepared by dc Reactive Magnetron Sputtering at Different Sputtering Pressure, Cryst. Res. Trechnol,35, 1193-1202 (2000)
  5. Kim H., Horwitz J.S., Pique A., Gilmore C.H. and Chrisey D.B., Electrical and Optical Properties of Indium Tin Oxide Thin Films Grown by laser Deposition, Apl. Phys., A 69S447-S450 (1999)
  6. Ezema F.I., Investigation of Optical Properties of Chemical Bath Deposited Beryllium oxide (BeO) Thin Film and its Application, Greenwich Journal of science and Technology, JST 32, 1-15 (2003)
  7. Ezenwa I.A., Optical Analysis of Chemical bath Fabricated Cuo Thin Films, Research Journal of Recent Sciences, 1(1), 46-50 (2012)
  8. Okereke N.A. and Ekpunobi A.J., Effect of Deposition Time on Chemical Bath Deposition Process and Thickness of BaSe Thin Films, Journal of Optoelectronics and Biomedical Materials,3(4), 81 85 (2011)
  9. Ezenwa I.A., Optical Properties of Chemical Bath Deposited Lead Selenide Thin Films, Advances in Applied Science Research, 3(2), 980-985 (2012)