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The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures

Copper indium sulfide (CuInS2) nanostructures have been successfully deposited on silicon substrates using the electrospinning method. As a result, different copper to indium (Cu/In) molar ratios have been used: 0.1, 0.5, 0.8, 1.2, and 1.4 at annealing temperature 300 degrees C. The optical properti...

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Main Authors: Alalousi, Mazin A., Abu Odeh, Ali, Ibraheam, A. S., Al-Douri, Y.
Format: Article
Published: Springernature 2021
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/35164/
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spelling my.um.eprints.351642022-09-02T00:12:48Z http://eprints.um.edu.my/35164/ The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures Alalousi, Mazin A. Abu Odeh, Ali Ibraheam, A. S. Al-Douri, Y. TA Engineering (General). Civil engineering (General) Copper indium sulfide (CuInS2) nanostructures have been successfully deposited on silicon substrates using the electrospinning method. As a result, different copper to indium (Cu/In) molar ratios have been used: 0.1, 0.5, 0.8, 1.2, and 1.4 at annealing temperature 300 degrees C. The optical properties have been measured using photoluminescence spectroscopy (PL), which indicated a decrease in the optical band gap from 1.6 to 1.53 eV with increasing Cu/In molar ratio. The structural properties have been deduced using X-ray diffraction (XRD), which improved the crystallinity size and quality by increasing the Cu/In molar ratio. The c/a ratio at different Cu/In molar ratios ranges from 2.004 to 2.037 due to the zinc blende structure, and the crystallite size was varied from 22.53 to 56.33 nm. The average grain size was approximately 39 nm, and the lattice parameters vary from 5.53 to 5.5 angstrom and from 11.09 to 11.2 angstrom for a and c, respectively. The compositional properties are studied using energy-dispersive X-ray spectroscopy (EDX), which showed that the samples are almost stoichiometric with S-deficient and Cu-rich composition. The best-formed structure's value was at molar ratio 1.4, where the real phase is 60.5%, and the secondary phase is 39.5% due to the increase in grain size, and that in turn occurred due to the decrease in the energy band gap. The morphological properties have been depicted using field emission scanning electron microscopy (FESEM). FESEM images indicated a change in the grain particles' homogeneity and agglomeration due to changing the Cu/In molar ratio. According to the available literature, the obtained results promise to use CuInS2 as absorber material in photovoltaic devices' nanostructure. Springernature 2021-04 Article PeerReviewed Alalousi, Mazin A. and Abu Odeh, Ali and Ibraheam, A. S. and Al-Douri, Y. (2021) The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures. Emergent Materials, 4 (2, SI). pp. 413-422. ISSN 2522-5731, DOI https://doi.org/10.1007/s42247-021-00176-8 <https://doi.org/10.1007/s42247-021-00176-8>. 10.1007/s42247-021-00176-8
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Alalousi, Mazin A.
Abu Odeh, Ali
Ibraheam, A. S.
Al-Douri, Y.
The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures
description Copper indium sulfide (CuInS2) nanostructures have been successfully deposited on silicon substrates using the electrospinning method. As a result, different copper to indium (Cu/In) molar ratios have been used: 0.1, 0.5, 0.8, 1.2, and 1.4 at annealing temperature 300 degrees C. The optical properties have been measured using photoluminescence spectroscopy (PL), which indicated a decrease in the optical band gap from 1.6 to 1.53 eV with increasing Cu/In molar ratio. The structural properties have been deduced using X-ray diffraction (XRD), which improved the crystallinity size and quality by increasing the Cu/In molar ratio. The c/a ratio at different Cu/In molar ratios ranges from 2.004 to 2.037 due to the zinc blende structure, and the crystallite size was varied from 22.53 to 56.33 nm. The average grain size was approximately 39 nm, and the lattice parameters vary from 5.53 to 5.5 angstrom and from 11.09 to 11.2 angstrom for a and c, respectively. The compositional properties are studied using energy-dispersive X-ray spectroscopy (EDX), which showed that the samples are almost stoichiometric with S-deficient and Cu-rich composition. The best-formed structure's value was at molar ratio 1.4, where the real phase is 60.5%, and the secondary phase is 39.5% due to the increase in grain size, and that in turn occurred due to the decrease in the energy band gap. The morphological properties have been depicted using field emission scanning electron microscopy (FESEM). FESEM images indicated a change in the grain particles' homogeneity and agglomeration due to changing the Cu/In molar ratio. According to the available literature, the obtained results promise to use CuInS2 as absorber material in photovoltaic devices' nanostructure.
format Article
author Alalousi, Mazin A.
Abu Odeh, Ali
Ibraheam, A. S.
Al-Douri, Y.
author_facet Alalousi, Mazin A.
Abu Odeh, Ali
Ibraheam, A. S.
Al-Douri, Y.
author_sort Alalousi, Mazin A.
title The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures
title_short The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures
title_full The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures
title_fullStr The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures
title_full_unstemmed The effect of Cu/In molar ratio on the analysis and characterization of CuInS2 nanostructures
title_sort effect of cu/in molar ratio on the analysis and characterization of cuins2 nanostructures
publisher Springernature
publishDate 2021
url http://eprints.um.edu.my/35164/
_version_ 1744649220303880192
score 13.211869

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