Nitrogen doped single layer graphene for CZTS-based thin film solar cells

Basit Öğe Kaydı
dc.authoridZAN, RECEP/0000-0001-6739-4348
dc.authoridErkan, Serkan/0000-0001-7249-6701
dc.authoridOLGAR, MEHMET ALI/0000-0002-6359-8316
dc.authoridAltuntepe, Ali/0000-0002-6366-4125
dc.contributor.authorOlgar, Mehmet Ali
dc.contributor.authorErkan, Serkan
dc.contributor.authorAltuntepe, Ali
dc.contributor.authorZan, Recep
dc.date.accessioned2024-11-07T13:25:04Z
dc.date.available2024-11-07T13:25:04Z
dc.date.issued2024
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractCdS thin films are commonly utilized as a buffer layer in chalcopyrite thin-film solar cells. However, due to the toxic nature of Cadmium (Cd), ongoing efforts are being directed towards exploring alternative options. In this contribution, doped graphene film with remarkable optical and electrical properties has been introduced for the first time as an alternative buffer layer, replacing CdS in CZTS thin-film solar cell application. In this study, nitrogen-doped graphene (N-doped graphene) film was utilized as a substitute buffer layer in the CZTS thin-film solar cell structure, replacing the conventional CdS thin film. For comparative analysis, CZTS/N-doped graphene and CZTS/CdS traditional solar cell structures were fabricated and separately characterized. The CZTS thin films produced were examined through EDX, XRD, SEM, Raman, optical transmission and PL spectroscopy measurements. According to performed analyses, the Cu-poor and Zn-rich kesterite CZTS thin films exhibited a uniform and dense polycrystalline microstructure as observed in surface and cross-sectional SEM images. XRD spectra of the kesterite CZTS thin film displayed predominant peaks corresponding to the (112), (220/204), and (312/116) diffraction planes of the kesterite CZTS phase. Raman spectra showed a dominant peak at similar to 336 cm (-1) associated with the kesterite CZTS phase. PL emission spectra indicated transitions from the conduction band to defect levels. The CVD-grown doped graphene film exhibited a 3.43 I-2D/I-G ratio and a 25 cm (-1) FWHM of the 2D peak, indicating a single -layer graphene according to Raman analysis. Permanent nitrogen doping with a 2% atomic concentration was confirmed by XPS measurement. The optical transmission measurement of the single layer doped graphene film showed a 95% transmittance value. Nitrogen doping was contributed to decrease the sheet resistance of the graphene film. The Glass/Mo/CZTS/N-doped graphene/i-ZnO/ITO/Al solar cell displayed a V-OC of 0.267 V, J(SC) of 24.6 mA/cm(2), FF of 36.46, and eta of 2.37%, showing higher FF and Jsc values but lower conversion efficiency compared to the Glass/Mo/CZTS/CdS/i-ZnO/ITO/Al traditional solar cell structure. Hence, the superior working function and transparency properties position the N-doped graphene film as a competitive buffer layer for use in CZTS-based thin-film solar cells.
dc.description.sponsorshipScientific and Technological Research Council of Turkey; Priority Areas Doctoral Program due; [TUBITAK-120F275]; [TUBITAK BIDEB 2211-C]
dc.description.sponsorshipThe authors gratefully acknowledge the funding from The Scientific and Technological Research Council of Turkey (TUBITAK-120F275) . Serkan Erkan also extends his gratitude to TUBITAK BIDEB 2211-C Priority Areas Doctoral Program due to financial support.
dc.identifier.doi10.1016/j.optmat.2024.115167
dc.identifier.issn0925-3467
dc.identifier.issn1873-1252
dc.identifier.scopus2-s2.0-85187199757
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.optmat.2024.115167
dc.identifier.urihttps://hdl.handle.net/11480/14486
dc.identifier.volume150
dc.identifier.wosWOS:001202888700001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofOptical Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectCZTS
dc.subjectNitrogen doped-graphene
dc.subjectSputtering
dc.subjectCVD
dc.subjectSolar cell
dc.titleNitrogen doped single layer graphene for CZTS-based thin film solar cells
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu