Novel heterojunction superstrate Cu2ZnInS4−x (CZIS) thin film kesterite solar cell with vertical arrays of hexagonal ZnO nanorods window layer

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dc.contributor.authorYussuf, Sodiq Tolulope
dc.contributor.authorRamoroka, Morongwa Emmanuel
dc.contributor.authorMdluli, Siyabonga Beizel
dc.contributor.authorNwambaekwe, Kelechi Chiemezie
dc.contributor.authorEkwere, Precious Idinma
dc.contributor.authorUhuo, Onyinyechi Vivian
dc.contributor.authorIkpo, Chinwe Oluchi
dc.contributor.authorIwuoha, Emmanuel Iheanyichukwu
dc.date.accessioned2023-03-28T06:53:40Z
dc.date.available2023-03-28T06:53:40Z
dc.date.issued2022-11-24
dc.description.abstractQuaternary Cu2ZnInS4−x (CZIS) thin films have been prepared by a facile and cheap sol-gel spin coating technique. Low-temperature solution-based methods were used to fabricate a heterojunction solar cell in the superstrate architecture with CZIS thin film as the absorber, vertically aligned ZnO nanorod arrays, and CdS as the window and buffer layers respectively. ZnO nanorod arrays were prepared by hydrothermal technique and nanocrystal layer deposition technique were employed for the deposition of CdS-coated ZnO nanorod arrays. CZIS absorber layer was spin coated on the CdS-coated ZnO nanorod arrays and annealed at different temperatures. The vertically aligned ZnO nanorod arrays, and uniformly distributed CdS shell layer were confirmed from morphological studies. The device had a final configuration of Glass/ITO/ZnO NRs/CdS/ CZIS/Ag. HRSEM revealed a nanoflake-like morphology and a band gap between 1.5 and 1.77 eV for the CZIS thin films. CZIS superstrate solar cell had a power conversion efficiency of ∼ 0.61%, an open circuit voltage of ∼ 0.8 V, a short circuit current of ∼ 0.95 mA cm−2 and a fill factor of ∼ 61.35%. This method demonstrates a novel, facile and eco-friendly technique for synthesizing nanocrystalline CZIS thin films with promising photo response from the fabricated device indicating a proof of principle that this material can find application in solar cells.en_US
dc.description.sponsorshipUniversity of the Western Capeen_US
dc.identifier.citationYussuf, S. T., Ramoroka, M. E., Mdluli, S. B., Nwambaekwe, K. C., Ekwere, P. I., Uhuo, O. V., ... & Iwuoha, E. I. (2023). Novel heterojunction superstrate Cu2ZnInS4− x (CZIS) thin film kesterite solar cell with vertical arrays of hexagonal ZnO nanorods window layer. Journal of Alloys and Compounds, 935, 168211.en_US
dc.identifier.issn0925-8388
dc.identifier.urihttp://hdl.handle.net/10566/8665
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectKesteriteen_US
dc.subjectNanomaterialsen_US
dc.subjectSol-gel synthesisen_US
dc.subjectThin film solar cellsen_US
dc.titleNovel heterojunction superstrate Cu2ZnInS4−x (CZIS) thin film kesterite solar cell with vertical arrays of hexagonal ZnO nanorods window layeren_US
dc.typeArticleen_US

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