Preparation of PbS compound and studying the effect of doping with barium on some of its physical properties

Authors

  • Khitam Kanjarawi Tishreen University
  • Ghassan Nashed Aleppo University

Abstract

Three Samples were prepared in the form of thin films of barium –doped Lead sulfide  , () on previously cleaned glass slides by chemical bath deposition (CBD) technique .

The surface structure of the prepared samples was studied using the Atomic Force Microscope (AFM) device . It was found that the surface structure of the samples is a nano – granular structure and the size of the granules decreases with the increase in the doping ratio .

The diffraction spectrum of X- rays on the samples ()was studied .The preferred direction of growth was according to the crystalline plane (200),and by analyzing the XRD spectrum of the prepared samples ,a decrease in the crystallization size was found with an increase in the dopant percentage by a decrease in the intensity of the dislocations.

The  feature was  studied for the prepared samples  at different temperatures for the first sample . The activation energy calculated and it was found to be equal  to 0.51 ev.  As for samples 2,3 no change in the feature   was observed with the change in temperature .

Using () Spectrometer , The absorption spectra of the prepared samples were studied within a wavelength range (200-1500)  , and the energy gap of samples was calculated , and an increase in the value of the energy gap was observed with the increase  in the percentage of doping .

Author Biographies

Khitam Kanjarawi, Tishreen University

Professor, Department of basic science –faculty of mechanical and electrical engineering

Ghassan Nashed, Aleppo University

Associated  Professor-Department of physics , faculty of science

Downloads

Published

2022-03-31

How to Cite

1.
قنجراوي خ, ناشد غ. Preparation of PbS compound and studying the effect of doping with barium on some of its physical properties. TUJ-BA [Internet]. 2022Mar.31 [cited 2024Apr.26];44(1):21-32. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/12080

Issue

Vol. 44 No. 1 (2022): Tishreen University Journal of Research and Scientific Studies - Basic Sciences Series

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.