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Title: Structural and optical studied of nano structured lead sulfide thin films prepared by the chemical bath deposition technique

Abstract

Lead (II) Sulfide PbS thin films were deposited on glass substrates at 25°C by chemical bath deposition (CBD) method. The structural properties of the films were studied as a function of the concentration of Thiourea (CS (NH{sub 2}){sub 2}) as Source of Sulfide and deposition time. The surface morphology of the films was characterized by X-ray diffraction and SEM. The obtained results showed that the as-deposited films Polycrystalline had cubic crystalline phase that belong to S.G: Fm3m. We found that they have preferred orientation [200]. Also the thickness of thin films decrease with deposition time after certain value and, it observed free sulfide had orthorhombic phase. Optical properties showed that the thin films have high transmission at visible range and low transmission at UV, IR range. The films of PbS have direct band gap (I.68 - 2.32 ev) at 300 K the values of band energy decreases with increases thickness of the Lead (II) Sulfide films.

Authors:
;  [1];  [2]
  1. Damascus University Faculty of Science, Department of physics, Homs (Syrian Arab Republic)
  2. Al –Mustansiriyah University, College of Education, Department of physics, Baghdad (Iraq)
Publication Date:
OSTI Identifier:
22608452
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1758; Journal Issue: 1; Conference: TMREES2016: Conference on technologies and materials for renewable energy, environment and sustainability, Beirut (Lebanon), 15-18 Apr 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CONCENTRATION RATIO; CRYSTAL STRUCTURE; DEPOSITION; FCC LATTICES; GLASS; GRAIN ORIENTATION; LEAD SULFIDES; NANOSTRUCTURES; OPTICAL PROPERTIES; ORTHORHOMBIC LATTICES; POLYCRYSTALS; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; SURFACES; THICKNESS; THIN FILMS; TRANSMISSION; X-RAY DIFFRACTION

Citation Formats

Al Din, Nasser Saad, E-mail: nsaadaldin@yahoo.com, Hussain, Nabiha, E-mail: nabihahssin@yahoo.com, and Jandow, Nidhal, E-mail: nidhaljandow@yahoo.com. Structural and optical studied of nano structured lead sulfide thin films prepared by the chemical bath deposition technique. United States: N. p., 2016. Web. doi:10.1063/1.4959378.
Al Din, Nasser Saad, E-mail: nsaadaldin@yahoo.com, Hussain, Nabiha, E-mail: nabihahssin@yahoo.com, & Jandow, Nidhal, E-mail: nidhaljandow@yahoo.com. Structural and optical studied of nano structured lead sulfide thin films prepared by the chemical bath deposition technique. United States. doi:10.1063/1.4959378.
Al Din, Nasser Saad, E-mail: nsaadaldin@yahoo.com, Hussain, Nabiha, E-mail: nabihahssin@yahoo.com, and Jandow, Nidhal, E-mail: nidhaljandow@yahoo.com. 2016. "Structural and optical studied of nano structured lead sulfide thin films prepared by the chemical bath deposition technique". United States. doi:10.1063/1.4959378.
@article{osti_22608452,
title = {Structural and optical studied of nano structured lead sulfide thin films prepared by the chemical bath deposition technique},
author = {Al Din, Nasser Saad, E-mail: nsaadaldin@yahoo.com and Hussain, Nabiha, E-mail: nabihahssin@yahoo.com and Jandow, Nidhal, E-mail: nidhaljandow@yahoo.com},
abstractNote = {Lead (II) Sulfide PbS thin films were deposited on glass substrates at 25°C by chemical bath deposition (CBD) method. The structural properties of the films were studied as a function of the concentration of Thiourea (CS (NH{sub 2}){sub 2}) as Source of Sulfide and deposition time. The surface morphology of the films was characterized by X-ray diffraction and SEM. The obtained results showed that the as-deposited films Polycrystalline had cubic crystalline phase that belong to S.G: Fm3m. We found that they have preferred orientation [200]. Also the thickness of thin films decrease with deposition time after certain value and, it observed free sulfide had orthorhombic phase. Optical properties showed that the thin films have high transmission at visible range and low transmission at UV, IR range. The films of PbS have direct band gap (I.68 - 2.32 ev) at 300 K the values of band energy decreases with increases thickness of the Lead (II) Sulfide films.},
doi = {10.1063/1.4959378},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1758,
place = {United States},
year = 2016,
month = 7
}
  • Cadmium sulfide (CdS) thin films have been deposited on conducting glass substrates by chemical bath deposition (CBD) technique. The effect of precursor concentration on the structural, morphological, compositional, and optical properties of the CdS films has been studied. Crystal structure of these CdS films is characterized by X-ray diffraction (XRD) and it reveals polycrystalline structure with mixture of cubic and wurtzite phases with grain size decreasing as precursor concentration is increased. Optical studies reveal that the CdS thin films have high transmittance in visible spectral region reaching 90% and the films possess direct optical band gap that decreases from 2.46more » to 2.39 eV with decreasing bath concentration. Our study suggests that growth is nucleation controlled.« less
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