A comparative study on characterizations and synthesis of pure lead sulfide (PbS) and Ag-doped PbS for photovoltaic applications

A comparative study on characterizations and synthesis of pure lead sulfide (PbS) and Ag-doped PbS for photovoltaic applications

In this study, a hydrothermal technique was used to synthesize lead sulfide (PbS) and silver (Ag)-doped PbS nanoparticles (NPs) at different concentrations of 20, 40, and 60% of Ag. The small lattice phase changes appeared due to the shifting of diffraction angle peaks toward higher 2 for samples do...

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Bibliographic Details
Published in:Nanotechnology reviews (Berlin) Vol. 10; no. 1; pp. 1484 - 1492
Main Authors: Jameel, Muhammad Hasnain, Saleem, Shahroz, Hashim, Muhammad, Roslan, Muhammad Sufi, Somaily, Hamoud Hassan Naji, Hessin, Mahmoud M., El-Bahy, Zeinhom M., Ashiq, Muhammad Gul Bahr, Hamzah, Maytham Qabel, Jabbar, Abdullah Hasan, Yabagi, Jibrin Alhaji, Agam, Mohd Arif Bin
Format: Journal Article
Language:English
Published: Berlin De Gruyter 13-10-2021
Walter de Gruyter GmbH
Subjects:
Absorption
Absorption spectra
Ag/PbS
Comparative studies
Crystallites
Crystals
Doping
Fourier analysis
Fourier transforms
Infrared spectroscopy
Lattice parameters
Lead sulfides
Nanomaterials
Nanoparticles
Optical properties
photovoltaic applications
Photovoltaics
Porosity
pure lead sulfide
Scanning electron microscopy
Silver
Solid phases
Spectrum analysis
Sulfides
Ultraviolet spectroscopy
Unit cell
Vibration mode
Wavelengths
X-ray diffraction
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Summary:In this study, a hydrothermal technique was used to synthesize lead sulfide (PbS) and silver (Ag)-doped PbS nanoparticles (NPs) at different concentrations of 20, 40, and 60% of Ag. The small lattice phase changes appeared due to the shifting of diffraction angle peaks toward higher 2 for samples doped with PbS with increasing Ag content. The analysis of average crystallite size, phase structure, and lattice constant was observed under X-ray diffraction. The value of crystallite size, volume of the unit cell, and porosity (%) were found to increase with the increasing concentration of Ag NPs in PbS. The pure PbS crystallite size is small compared to Ag-doped PbS. The optical characteristics including absorption spectra of the prepared samples were investigated and confirmed by using scanning electron microscope and UV-Vis spectroscopy. The observation of the composition showed that higher doping concentrations of Ag lead to an increase in particle size. Absorption peaks in the UV-Vis spectra corresponding to pure and 20, 40, and 60% of Ag/PbS were observed at different wavelengths of 368, 369, 371, and 372 nm, respectively. Fourier transformation infrared spectroscopy peaks were found in the vibration mode of the ions due to the increment in Ag doping concentrations. These results indicate the possibility of tuning the optical structural properties of Ag-doped PbS through doping various concentrations of Ag NPs. Ag-doped PbS is considered promising future semiconductor nanomaterial, which will enhance the efficiency of photovoltaic device applications.
ISSN:2191-9097
2191-9089
2191-9097
DOI:10.1515/ntrev-2021-0100