Non-stoichiometric effect and disorder in as-prepared Cu2ZnSnS4 films deposited at different temperatures by ultrasonic spray pyrolysis

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dc.authoridGUNES, IBRAHIM/0000-0001-9388-6223
dc.contributor.authorGunes, Ibrahim
dc.contributor.authorBilgin, Vildan
dc.contributor.authorSarica, Emrah
dc.date.accessioned2025-01-27T21:00:27Z
dc.date.available2025-01-27T21:00:27Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA better understanding of its crystal structure, the formation of possible secondary phases, defects and Cu-Zn disorder effects is needed to improve the photovoltaic device performance of CZTS films. In this direction, the effect of deposition temperature on the structural inhomogeneities, such as secondary phases and Cu-Zn dis-order, etc. as well as opto-electrical properties of CZTS were experimentally examined. For this purpose, a non-stoichiometric spraying solution was prepared and ultrasonically sprayed onto glass substrates at different deposition temperatures (350 degrees C, 400 degrees C, 450 degrees C, and 500 degrees C) to obtain CZTS films. Afterward, the structural, morphological, elemental, optical, and electrical properties of the deposited films were investigated in detail. By Lorentzian deconvolution of Raman spectra, 14 Raman vibrational modes were detected and seven of these were assigned to the secondary phases. Also, the ordered-kesterite phase (337 cm-1) of CZTS was found to crystallize along with the disordered-kesterite phase (329 cm-1) due to the disorder of the cation (Cu-Zn) sublattice. Optical band gaps for CZTS films decreased from 1.89 eV to 1.42 eV with increasing in deposition temperature. It was seen that not only optical band gaps but also Cu-Zn disorder and the amount of secondary phases in CZTS films tightly depend on the deposition temperature.
dc.description.sponsorshipCanakkale Onsekiz Mart University Scientific Research Projects Committee; [FDK- 2019-3031]
dc.description.sponsorshipThis study was conducted as part of PhD thesis of the first author under the advising of second author and co -advising of third author. Also, the authors would like to thank Prof. Dr. Idris Akyuz (Eskisehir Osmangazi University) for fruitful discussions and experimental assistance. This work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the project number FDK- 2019-3031.
dc.identifier.doi10.1016/j.mssp.2022.107120
dc.identifier.issn1369-8001
dc.identifier.issn1873-4081
dc.identifier.scopus2-s2.0-85138451075
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.mssp.2022.107120
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27028
dc.identifier.volume152
dc.identifier.wosWOS:000862498600003
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofMaterials Science in Semiconductor Processing
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectUltrasonic spray pyrolysis
dc.subjectNon-stoichiometric CZTS films
dc.subjectAbsorber layer
dc.subjectCu -Zn disorder
dc.subjectSecondary phases
dc.subjectQuantum confinement effect
dc.titleNon-stoichiometric effect and disorder in as-prepared Cu2ZnSnS4 films deposited at different temperatures by ultrasonic spray pyrolysis
dc.typeArticle

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