Enhancement in photovoltaic performance of CZTS Thin-film solar cells through varying stacking order and sulfurization time

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dc.authoridOLGAR, MEHMET ALI/0000-0002-6359-8316
dc.contributor.authorOlgar, M. A.
dc.date.accessioned2024-11-07T13:24:15Z
dc.date.available2024-11-07T13:24:15Z
dc.date.issued2022
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe CZTS samples were produced by a two-stage method, which includes deposition of Cu, Sn, Zn, and ZnS layers using magnetron sputtering to obtain CuSn/Zn/Cu and CuSn/ZnS/Cu stacks. The latter stage involves the sulfurization process of stacked films at 550 degrees C for varied sulfurization time (60, 90, 120, and 150 s) employing Rapid Thermal Processing (RTP) method to attain CZTS structure. The prepared CZTS thin films were analyzed utilizing several characterization methods. The energy-dispersive X-ray spectroscopy (EDX) measurements revealed that all sulfurized samples had Cu-poor and Zn-rich chemical composition. All samples showed that diffraction peaks belonged to pure kesterite CZTS phase subject to their XRD patterns. Besides, it was observed that the sulfurization time had a crucial effect on the crystal size of the samples. The Raman spectra of the samples verified the constitution of kesterite CZTS phase and it provides detection of some CTS-based secondary phases. The scanning electron microscopy (SEM) image of the films revealed that polycrystalline surface structures were observable in all the samples. However, plate-like surface features were observed in some samples that may refer to CTS-based secondary phases depending on chemical composition. From 1.40 to 1.48 eV optical band gap values were obtained from (alpha chv)(2) vs. photon energy (hv) plots. The Van der Pauw measurements exhibited that the CZTS samples produced employing CuSn/ZnS/Cu stack had lower resistivity (similar to 10(-3) Omega cm), higher carrier concentration values (similar to 10(21) cm(-3)), and higher charge mobility. The solar cells prepared using the most promising CZTS samples employing CuSn/Zn/Cu and CuSn/ZnS/Cu precursor films revealed 1.95% and 3.10% conversion efficiencies, respectively.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [118F530]
dc.description.sponsorshipThis work partially supported by The Scientific and Technological Research Council of Turkey (TUBITAK) with Project Number 118F530. M.A. Olgar gratefully acknowledge the help of M. Tomakin for electrical characterization, and S. Erkan and A. Yagmyrov for sample preparation.
dc.identifier.doi10.1007/s10854-022-08829-y
dc.identifier.endpage20133
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue25
dc.identifier.scopus2-s2.0-85135855800
dc.identifier.scopusqualityQ2
dc.identifier.startpage20121
dc.identifier.urihttps://doi.org/10.1007/s10854-022-08829-y
dc.identifier.urihttps://hdl.handle.net/11480/14013
dc.identifier.volume33
dc.identifier.wosWOS:000838519600001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science-Materials in Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectOptical-Properties
dc.subjectCu2znsns4
dc.subjectGrowth
dc.subjectLayer
dc.subjectTemperature
dc.subjectOptimization
dc.subjectImpact
dc.titleEnhancement in photovoltaic performance of CZTS Thin-film solar cells through varying stacking order and sulfurization time
dc.typeArticle

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