Effect of side chain substituents on the electron injection abilities of unsymmetrical perylene diimide dyes

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dc.contributor.authorDincalp, Haluk
dc.contributor.authorAskar, Zuhal
dc.contributor.authorZafer, Ceylan
dc.contributor.authorIcli, Siddik
dc.date.accessioned2019-10-27T21:35:46Z
dc.date.available2019-10-27T21:35:46Z
dc.date.issued2011
dc.departmentEge Üniversitesien_US
dc.description.abstractThree near-infrared (NIR) absorbing unsymmetrical perylene diimide D A D type dyes containing 6-undecanoxy as donor group were utilized in dye-sensitized nanocrystalline TiO(2) solar cells. Structure of the acceptor side of the molecules were improved by adding 4-[2-methyl-5-(cyanoacrylic acid)-3-thienyl]-phenyl (V), 3-carboxy-2-pyridil (VI) and 3-carboxy-2-pyrazyl (VII) moieties attached to one of the N-side of the dye. The relationship between the molecular structure of the acceptor sites of the dyes and the photovoltaic performances were discussed. Electrochemical measurements indicated that band gaps of the dyes were energetically favorable for electron injection from the excited state of the dyes to the conduction band of TiO(2) nanoparticles. However, three dyes gave lower conversion efficiency on DSSC applications. Strong electron-withdrawing nature of perylene core might not permit to transfer the photo-generated electrons to the carboxyl groups anchoring to TiO(2) surface, and then solar-to-electricity conversion efficiencies of the dyes were reduced. (C) 2011 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipResearch Council of Celal Bayar UniversityCelal Bayar University [BAP/2008-016]; State Planning Organization of TurkeyTurkiye Cumhuriyeti Kalkinma Bakanligi [07 DPT 002]en_US
dc.description.sponsorshipFinancial support was received from Research Council of Celal Bayar University (BAP/2008-016) and the State Planning Organization of Turkey (07 DPT 002). We also thank Assoc. Prof. Dr. Talat Yalcin (IYTE, Chemistry Department) for the mass spectrometry measurements.en_US
dc.identifier.doi10.1016/j.dyepig.2011.03.022
dc.identifier.endpage191en_US
dc.identifier.issn0143-7208
dc.identifier.issn0143-7208en_US
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage182en_US
dc.identifier.urihttps://doi.org/10.1016/j.dyepig.2011.03.022
dc.identifier.urihttps://hdl.handle.net/11454/45925
dc.identifier.volume91en_US
dc.identifier.wosWOS:000292950500012en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofDyes and Pigmentsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPerylene diimideen_US
dc.subjectNear-infrared absorbingen_US
dc.subjectSolar spectraen_US
dc.subjectCharge transferen_US
dc.subjectTiO(2)en_US
dc.subjectnc-TiO(2)en_US
dc.titleEffect of side chain substituents on the electron injection abilities of unsymmetrical perylene diimide dyesen_US
dc.typeArticleen_US

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