Improved CZTSe solar cell efficiency via silver and germanium alloying

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dc.authoridBasol, Bulent/0000-0002-7691-1113
dc.authoridZAN, RECEP/0000-0001-6739-4348
dc.authoridKUCUKOMEROGLU, TAYFUR/0000-0003-4121-9343
dc.contributor.authorAtasoy, Yavuz
dc.contributor.authorBacaksiz, Emin
dc.contributor.authorCiris, Ali
dc.contributor.authorOlgar, Mehmet Ali
dc.contributor.authorZan, Recep
dc.contributor.authorAli, Ahmed M. J. Al-dala
dc.contributor.authorKucukomeroglu, Tayfur
dc.date.accessioned2024-11-07T13:32:17Z
dc.date.available2024-11-07T13:32:17Z
dc.date.issued2024
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this study, we report systematic investigation of the effects of Ag and Ge alloying on properties of CZTSe layers, as well as, on the performance of solar cells fabricated using these films. In this context, Ag-Ge doped CZTSe layers were produced by selenization of Cu/Sn/Zn/Cu/(Ag,Ge)/Se precursor stack structures using rapid thermal processing. All precursor stacks and the Ag-Ge doped CZTSe films obtained after selenization exhibited (Cu + Ag)-poor and Zn-rich chemical composition. XRD studies demonstrated pure kesterite phase for all reacted films. Raman spectra confirmed this finding. Cross-sectional SEMs showed large grain structure, which resulted from Ag-Se and Ge-Se liquid phase formation that assisted crystal growth during high temperature annealing. While a slight Ag-front-gradient was achieved in Ag-doped CZTSe film, the Ag gradient disappeared with incorporation of Ge into the lattice. Addition of Ge formed a gradient within the material such that near-contact region was more Ge-rich. Solar cells fabricated using films with various compositions demonstrated that double doping CZTSe with both Ag and Ge improved the device efficiency from about 5 % to over 8 %.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye [120F029]
dc.description.sponsorshipThis study is financially supported by the Scientific and Technological Research Council of Turkiye with the project number of 120F029.
dc.identifier.doi10.1016/j.solener.2023.112247
dc.identifier.issn0038-092X
dc.identifier.issn1471-1257
dc.identifier.scopus2-s2.0-85179794622
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.solener.2023.112247
dc.identifier.urihttps://hdl.handle.net/11480/15339
dc.identifier.volume267
dc.identifier.wosWOS:001138602000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofSolar Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectCZTSe thin film
dc.subjectAg and Ge alloying
dc.subjectAg-front-gradient
dc.subjectGe-back
dc.subjectgradient
dc.subjectSolar cell efficiency
dc.titleImproved CZTSe solar cell efficiency via silver and germanium alloying
dc.typeArticle

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