2026-10-18T23:54:17Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/147732026-10-18T20:43:23Zopenairedrivercom_ebyu_10000col_ebyu_10001

Produce of graphene/iron pyrite (FeS2) thin films counter electrode for dye-sensitized solar cellKilic, BayramTurkdogan, SunayOzer, Oguz CanAsgin, MansurBayrakli, OzgeSurucu, GokhanAstam, AykutEkinci, DuyguCounter electrodeDSSCGraphenePyrite (FeS₂)Tio₂Conversion efficiencyElectrodesElectrolytesEnergy conversionPlatinumPlatinum metalsPyritesSolar cellsThin filmsTitanium dioxideConductive glassCounter electrodesDevice fabricationsExternal quantum efficiencyRedox electrolytesSun illuminationThin layer coatingsDye-sensitized solar cellsDye-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. © 2016Elsevier B.V.2016Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/14773https://doi.org/10.1016/j.matlet.2016.06.0690167-577XenMaterials Lettersinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/14773