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Exploration of the structural, optoelectronic and vibrational behavior of Sb2S3 through the first principles approach for phenomenal applications in solar cells
In order to study any material the first principles approach has been considered an appropriate forum and deemed the best remedy to ensure the validity of the achievements/results obtained either theoretically or experimentally. We are, therefore, motivated to use this approach to explore the struct...
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Published in: | Optical and quantum electronics 2022-12, Vol.54 (12), Article 779 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | In order to study any material the first principles approach has been considered an appropriate forum and deemed the best remedy to ensure the validity of the achievements/results obtained either theoretically or experimentally. We are, therefore, motivated to use this approach to explore the structural, optoelectronic and vibrational properties of Sb
2
S
3
while utilizing the plane-wave pseudopotential technique and conjugate gradient method employed through the CASTEP simulation code. The crystal structure of Sb
2
S
3
is optimized in orthorhombic phase having space group
Pnma
with lattice parameters
a
= 11.31 Å,
b
= 3.84 Å and
c
= 11.23 Å. It is noticed that magnitude of these lattice parameters approximately replicate the formerly reported theoretical as well as experimental results. The energy band gap is found to be 1.012 eV, which is utter evidence that the studied compound belongs to semiconductor category of the materials. The optical parameters unveil that Sb
2
S
3
is capable to absorb wide range of radiations from the ultraviolet (UV) portion of the spectrum. The dynamical analysis through density functional perturbation theory (DFPT) shows that there is no soft mode which further ensures dynamical stability of Sb
2
S
3
. The optical analysis of the studied compound are enough to declare it a potential material for applications in solar cells. |
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ISSN: | 0306-8919 1572-817X |
DOI: | 10.1007/s11082-022-04190-w |