An insight into titania nanopowders modifying with manganese ions: A promising route for highly efficient and stable photoelectrochemical solar cells

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dc.contributor.authorÖztürk, Teoman
dc.contributor.authorGülveren, Berna
dc.contributor.authorGülen, Mahir
dc.contributor.authorAkman, Erdi
dc.contributor.authorSönmezoğlu, Savaş
dc.date.accessioned2020-03-26T19:33:48Z
dc.date.available2020-03-26T19:33:48Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this study, we firstly report the synthesis of pure and manganese (Mn) doped titania nanopowders by solution-based chemical process followed by ball-milling and ultra-sonication processes and their usage as photoanode material in dye-sensitized solar cells (DSSCs). Besides examining the properties of physical and charge transfer dynamics, we also made a detailed cost analysis to compare with commercial P25 nanopowders. By incorporating Mn4+ ions into titania matrix, we have also succeeded not only in lower price but also in significantly enhancing the dye loading capability by increasing specific surface area and the retarding the recombination of electron-hole pairs by forming the discrete interstitial states within the band gap as well as accelerating electron transfer by tailoring in energy gap, leading to better photovoltaic performance. Such that, the cell assembled with 0.4 mol% Mn doped TiO2 yields an efficiency of 7.33%, which is similar to 47% and similar to 65% higher than the value obtained for P25 and pure titania-based photoanode, respectively, and shows a fast, stable, and completely reversible photocurrent response accompanying each switch-on/off event. Furthermore, the photoinduced electron transfer (PET) measurements indicate an efficient interfacial charge transfer for 0.4 mol%Mn doped titania (k(ET) = 0.99 x 10(8) s(-1)) compared to the both synthesized pure TiO2 (0.74 x 10(8) s(-1)) and commercial P25 (0.94 x 10(8) s(-1)) photoanodes. This work renders the possibility of synthesizing low-cost and easy-preparation Mn-doped titania nanopowders and describes an innovative approach to further boost the efficiency of green technologies such as solar-driven water splitting, photoelectrochemical and perovskite solar cells applications. (C) 2017 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.solener.2017.08.010en_US
dc.identifier.endpage57en_US
dc.identifier.issn0038-092Xen_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage47en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.solener.2017.08.010
dc.identifier.urihttps://hdl.handle.net/20.500.12395/34788
dc.identifier.volume157en_US
dc.identifier.wosWOS:000418314500005en_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.subjectDye-sensitized solar cellen_US
dc.subjectManganese-doped titania nanopowdersen_US
dc.subjectRecombination kineticsen_US
dc.subjectPhotoinduced electron transfer (PET)en_US
dc.subjectStabilityen_US
dc.titleAn insight into titania nanopowders modifying with manganese ions: A promising route for highly efficient and stable photoelectrochemical solar cellsen_US
dc.typeArticleen_US

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