Highly efficient tandem photoelectrochemical solar cells using coumarin6 dye-sensitized CuCrO2 delafossite oxide as photocathode

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dc.contributor.authorKaya, Ismail Cihan
dc.contributor.authorAkin, Seckin
dc.contributor.authorAkyildiz, Hasan
dc.contributor.authorSonmezoglu, Savas
dc.date.accessioned2020-03-26T19:54:09Z
dc.date.available2020-03-26T19:54:09Z
dc.date.issued2018
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this study, we introduce a new concept for the highly efficient tandem p-n photoelectrochemical cell consisting of coumarin6 organic dye-anchored p-type CuCrO2 delafossite semiconductor as photocathodes coupling with traditional n-type TiO2 based photoanodes. Also, we have systematically studied the photovoltaic performance of tandem cells as a function of post-annealing of CuCrO2 films before sensitization. Hydrothermally synthesized CuCrO2 nanocrystals exhibited a high surface area with small crystallite size of 12 nm, phase-pure and well-crystalline after the optimized post-annealing conditions. The experimental results indicated that the optimal post-annealing temperature was 450 degrees C for 1 h due to the larger active surface area, lower R-th and higher J(sc) and V-oc, values. This tandem cell, fabricated by employing the CuCrO2 photocathodes, iodide-based redox mediator and a coumarin6 organic dye, afforded an impressive efficiency of 2.33% with V-oc of 813 mV, J(sc) of 4.83 mA cm(-2), and fill factor of 0.59. The obtained parameters are acceptably high in comparison to NiO photocathode-based tandem cells previously reported in literature under similar experimental conditions. Therefore, this work opened the way for developing highly-efficient tandem photoelectrochemical solar cells.en_US
dc.identifier.doi10.1016/j.solener.2018.04.057en_US
dc.identifier.endpage205en_US
dc.identifier.issn0038-092Xen_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage196en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.solener.2018.04.057
dc.identifier.urihttps://hdl.handle.net/20.500.12395/36672
dc.identifier.volume169en_US
dc.identifier.wosWOS:000437079200024en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofSOLAR ENERGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCuCrO2en_US
dc.subjectDelafossite oxidesen_US
dc.subjectCoumarin6 organic dyeen_US
dc.subjectAnnealing effecten_US
dc.subjectTandem p-n photoelectrochemical cellsen_US
dc.titleHighly efficient tandem photoelectrochemical solar cells using coumarin6 dye-sensitized CuCrO2 delafossite oxide as photocathodeen_US
dc.typeArticleen_US

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