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Produce of graphene/iron pyrite (FeS2) thin films counter electrode for dye-sensitized solar cell

ArticleAçık Erişim

Özet

Dye-sensitized solar cells (DSSCs) provide a low cost alternative to the conventional solar cells due to their easy and inexpensive device fabrication steps. Generally, F:SnO2 (FTO) conductive glass with a thin layer coating of platinum (Pt) is used as a counter electrode (CE) in DSSCs. Since Pt is rare and therefore expensive metal, we were looking for a way to produce a new counter electrode based on graphene/iron pyrite (FeS2) thin films as an alternative to the Pt:FTO. In combination with a TiO2 mesoporous photoanode and an I3−/I- redox electrolyte, graphene/FeS2 CE based DSSC shows η=7.43% energy conversion efficiency under 1 sun illumination (100 mW/cm2, AM 1.5G) which is approximately 16.1% higher than conventional Pt CE (η=6.40%). External Quantum Efficiency (EQE) is found to be shifted upward when graphene/FeS2 is used as CE in the place of Pt CE. The excellent performance of the graphene/FeS2 CE makes it a very promising alternative to costly Pt in DSSCs. © 2016

Anahtar Kelimeler

Counter electrodeDSSCGraphenePyrite (FeS<sub>2</sub>)Tio<sub>2</sub>Conversion efficiencyElectrodesElectrolytesEnergy conversionPlatinumPlatinum metalsPyritesSolar cellsThin filmsTitanium dioxideConductive glassCounter electrodesDevice fabricationsExternal quantum efficiencyRedox electrolytesSun illuminationThin layer coatingsDye-sensitized solar cells
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Tam Kayıt
AlanDeğerDil
dc.contributor.authorKilic, Bayram
dc.contributor.authorTurkdogan, Sunay
dc.contributor.authorOzer, Oguz Can
dc.contributor.authorAsgin, Mansur
dc.contributor.authorBayrakli, Ozge
dc.contributor.authorSurucu, Gokhan
dc.contributor.authorAstam, Aykut
dc.contributor.authorEkinci, Duygu
dc.date.accessioned2026-10-18T20:29:34.612394412Z
dc.date.available2026-10-18T20:29:34.612394412Z
dc.date.issued2016
dc.description.abstractDye-sensitized solar cells (DSSCs) provide a low cost alternative to the conventional solar cells due to their easy and inexpensive device fabrication steps. Generally, F:SnO2 (FTO) conductive glass with a thin layer coating of platinum (Pt) is used as a counter electrode (CE) in DSSCs. Since Pt is rare and therefore expensive metal, we were looking for a way to produce a new counter electrode based on graphene/iron pyrite (FeS2) thin films as an alternative to the Pt:FTO. In combination with a TiO2 mesoporous photoanode and an I3−/I- redox electrolyte, graphene/FeS2 CE based DSSC shows η=7.43% energy conversion efficiency under 1 sun illumination (100 mW/cm2, AM 1.5G) which is approximately 16.1% higher than conventional Pt CE (η=6.40%). External Quantum Efficiency (EQE) is found to be shifted upward when graphene/FeS2 is used as CE in the place of Pt CE. The excellent performance of the graphene/FeS2 CE makes it a very promising alternative to costly Pt in DSSCs. © 2016
dc.description.sponsorshipThis project was supported by Türkiye Bilimsel ve Teknolojik Arastirma Kurumu ( Scientific and Technological Research Council of Turkey ) (TUBITAK) Project number: 114F292 . The authors would like to thank TUBITAK for giving a support.
dc.identifier.doi10.1016/j.matlet.2016.06.069
dc.identifier.eissn1873-4979
dc.identifier.endpage587
dc.identifier.issn0167-577X
dc.identifier.scopus2-s2.0-84990033162
dc.identifier.startpage584
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/14773
dc.identifier.volume185
dc.identifier.wosWOS:000390510900151
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials Letters
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCounter electrode
dc.subjectDSSC
dc.subjectGraphene
dc.subjectPyrite (FeS<sub>2</sub>)
dc.subjectTio<sub>2</sub>
dc.subjectConversion efficiency
dc.subjectElectrodes
dc.subjectElectrolytes
dc.subjectEnergy conversion
dc.subjectPlatinum
dc.subjectPlatinum metals
dc.subjectPyrites
dc.subjectSolar cells
dc.subjectThin films
dc.subjectTitanium dioxide
dc.subjectConductive glass
dc.subjectCounter electrodes
dc.subjectDevice fabrications
dc.subjectExternal quantum efficiency
dc.subjectRedox electrolytes
dc.subjectSun illumination
dc.subjectThin layer coatings
dc.subjectDye-sensitized solar cells
dc.titleProduce of graphene/iron pyrite (FeS2) thin films counter electrode for dye-sensitized solar cell
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus29
rdl.citation.wos26
rdl.oa.statusgreen
rdl.source.indexSCOPUS
rdl.source.indexWOS
rdl.wos.indexScience Citation Index Expanded (SCI-EXPANDED)