Optical and structural properties of lead sulphide (PbS) thin films synthesized by chemical method

B. A. Ezekoye; T. M. Emeakaroha; V. A. Ezekoye; K. O. Ighodalo; P. O. Offor

doi:10.5897/IJPS2015.4354

International Journal of
Physical Sciences

Abbreviation: Int. J. Phys. Sci.
Language: English
ISSN: 1992-1950
DOI: 10.5897/IJPS
Start Year: 2006
Published Articles: 2569

Full Length Research Paper

Optical and structural properties of lead sulphide (PbS) thin films synthesized by chemical method

B. A. Ezekoye

B. A. Ezekoye
Crystal Growth and Characterization Laboratory, Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria.
Search for this author on:
Google Scholar

T. M. Emeakaroha

T. M. Emeakaroha
Crystal Growth and Characterization Laboratory, Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria.
Search for this author on:
Google Scholar

V. A. Ezekoye

V. A. Ezekoye
Crystal Growth and Characterization Laboratory, Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria.
Search for this author on:
Google Scholar

K. O. Ighodalo

K. O. Ighodalo
Crystal Growth and Characterization Laboratory, Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria.
Search for this author on:
Google Scholar

P. O. Offor

P. O. Offor
Department of metallurgical and materials engineering, University of Nigeria.
Search for this author on:
Google Scholar

Article Number - 6773C7D54070
Vol.10(13), pp. 385-390 , July 2015
https://doi.org/10.5897/IJPS2015.4354

Received: 21 April 2015
Accepted: 15 June 2015
Published: 16 July 2015

Copyright © 2024 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0.

Abstract

The influence of dip times on the lead sulphide (PbS) thin films deposited on glass slide substrates via chemical bath deposition (CBD) technique using chemical precursors, nitrate

, and thiourea,

) in alkaline medium at 300 K was investigated. The optical, structural and morphological studies were performed by UV-vis spectophotometry, X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. The XRD showed films of cubic (galena), crystalline in nature with the preferential (111) orientation. The optical studies showed films of direct band gaps in the range of 1.59-1.65 eV.