N-doped titania powders prepared by different nitrogen sources and their application in quasi-solid state dye-sensitized solar cells

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dc.contributor.authorDiker, Halide
dc.contributor.authorVarlikli, Canan
dc.contributor.authorStathatos, Elias
dc.date.accessioned2019-10-27T22:14:25Z
dc.date.available2019-10-27T22:14:25Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description.abstractNitrogen-doped TiO2 nanocrystalline particles are synthesized by a microwave-assisted hydrothermal growth method using different amines (Dipropylamine, Diethanolamine and Ammonium hydroxide) as nitrogen sources. Characterization of the nanoparticles was performed with X-ray diffraction, UV-vis diffuse reflectance spectroscopy, Field Emission Scanning Electron Microscopy and X-ray Photoelectron Spectroscopy. The prepared N-doped TiO2 nanoparticles exhibit pure anatase phase with average diameter of 9 nm and reduced optical energy gap compared to undoped TiO2. Immobilization of N-doped and pure TiO2 nanoparticles on SnO2:F conductive glass substrates was successfully performed by using doctor-blade technique and paste of the aforementioned nanoparticles. A series of N-doped TiO2 photoelectrodes with varying N dopant source and concentrations were fabricated for quasi-solid state dye-sensitized solar cells. The N-doped solar cells achieve an overall conversion efficiency ranging from 4.0 to 5.7% while undoped TiO2 showed 3.6%. The basic difference to the electrical performance of the cells is focused to the enhancement in the current density of N-doped TiO2-based cells which was from 11% to 58% compared with undoped TiO2 cells. Current densities were directly proportional with nitrogen doping level in TiO2 lattice which differs depending on the amine source nature such as basicity differences, hydrogen bonding abilities and steric inherences. Copyright (c) 2013 John Wiley & Sons, Ltd.en_US
dc.description.sponsorshipNSRF; European Union-European Social FundEuropean Union (EU)European Social Fund (ESF); National Resources, Education and Lifelong Learning program 'Archimedes III'; State Planning Organization [11DPT001]; Ege UniversityEge University [12GEE009]en_US
dc.description.sponsorshipProf. E. Stathatos would like to acknowledge the financial support from NSRF co-funded by the European Union-European Social Fund and National Resources, Education and Lifelong Learning program 'Archimedes III'. The authors are thankful to the project funds of State Planning Organization (project # 11DPT001) and Ege University (project # 12GEE009) and would also like to thank Dr. Vassilios Dracopoulos, FORTH/ICE-HT, for the FE-SEM images and Dr. Aykutlu Dana for the XPS analysis.en_US
dc.identifier.doi10.1002/er.3091
dc.identifier.endpage917en_US
dc.identifier.issn0363-907X
dc.identifier.issn1099-114X
dc.identifier.issn0363-907Xen_US
dc.identifier.issn1099-114Xen_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage908en_US
dc.identifier.urihttps://doi.org/10.1002/er.3091
dc.identifier.urihttps://hdl.handle.net/11454/50002
dc.identifier.volume38en_US
dc.identifier.wosWOS:000335549300007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-Blackwellen_US
dc.relation.ispartofInternational Journal of Energy Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectdye-sensitized solar cellsen_US
dc.subjectnanocrystallineen_US
dc.subjectquasi-solid state electrolyteen_US
dc.subjectN-doped TiO2en_US
dc.titleN-doped titania powders prepared by different nitrogen sources and their application in quasi-solid state dye-sensitized solar cellsen_US
dc.typeArticleen_US

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