Integration of single layer graphene into CZTS thin film solar cells

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dc.authoridAltuntepe, Ali/0000-0002-6366-4125
dc.authoridZAN, RECEP/0000-0001-6739-4348
dc.contributor.authorErkan, S.
dc.contributor.authorYagmyrov, A.
dc.contributor.authorAltuntepe, A.
dc.contributor.authorZan, R.
dc.contributor.authorOlgar, M. A.
dc.date.accessioned2024-11-07T13:24:27Z
dc.date.available2024-11-07T13:24:27Z
dc.date.issued2022
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this study, CZTS samples were produced on Mo and graphene/Mo coated glass substrates using qua-ternary target. The CZTS thin films deposited by RF magnetron sputtering were annealed using rapid thermal processing (RTP) method in sulphur atmosphere at 500, 525, and 550 degrees C so as to obtain glass/Mo/ CZTS and glass/Mo/graphene/CZTS (g-CZTS) structures. The obtained CZTS and g-CZTS thin films were then characterized by several methods such as EDX, XRD, Raman spectroscopy, SEM etc. The EDX data demon-strated that all CZTS thin films had Cu poor composition regardless of the sulfurization temperature and increasing the temperature led to Sn loss from the films. Diffraction peaks of kesterite CZTS phase were observed in all the samples; additionally, SnS and CuS secondary phases were also observed in CZTS samples annealed at 500 degrees C. The crystallite size of the CZTS thin films were found to be increasing with both increasing annealing temperature and use of graphene film as an inter-layer. The creation of kesterite phase with a very small CTS phase in all the samples were verified by the Raman spectroscopy measurement. The SEM images of the samples indicated that using graphene improves the crystalline quality of the CZTS films and contributes to forming more compact, homogenous and larger crystal structure. The determined optical band gap values varied from 1.41 to 1.44 eV depending on the Sn-content of the samples. The produced solar cells selected from the more promising absorber layers showed that implementing graphene in CZTS cell structure enhanced the conversion efficiency from 2.40% to 3.52% due to improvement of crystalline quality of the absorber layer. (c) 2022 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [120F275]
dc.description.sponsorshipAcknowledgment This work partially supported by The Scientific and Technological Research Council of Turkey (TUBITAK) with project number 120F275. We gratefully acknowledge help of B.M. Ba?ol for reviewing.
dc.identifier.doi10.1016/j.jallcom.2022.166041
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-85132954964
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2022.166041
dc.identifier.urihttps://hdl.handle.net/11480/14129
dc.identifier.volume920
dc.identifier.wosWOS:000826597000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectCZTS
dc.subjectSingle layer graphene
dc.subjectSulfurization temperature
dc.subjectRTP
dc.subjectThin film solar cell
dc.titleIntegration of single layer graphene into CZTS thin film solar cells
dc.typeArticle

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