Effect of a pi-bridging unit in triphenylamine-benzothiadiazole based donor acceptor chromophores for dye-sensitized solar cells

Basit Öğe Kaydı
dc.contributor.authorYigit, Mesude Zeliha
dc.contributor.authorBilgili, Hakan
dc.contributor.authorSefer, Emre
dc.contributor.authorDemic, Serafettin
dc.contributor.authorZafer, Ceylan
dc.contributor.authorCan, Mustafa
dc.contributor.authorKoyuncu, Sermet
dc.date.accessioned2019-10-27T22:12:32Z
dc.date.available2019-10-27T22:12:32Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description.abstractTwo new metal free sensitizers based on triphenylamine-benzothiadiazole were synthesized and used in dye sensitized solar cells (DSSCs). Electrochemical and optical properties of the dyes were studied by cyclic voltammetry, UV-vis absorption and fluorescence spectroscopy. A red shift was observed by the attachment of a thiophene (MZ-259) instead of a phenylene (MZ-255) bridge. The reverse effect was observed in the electrochemical properties because of the more electron-donating thiophene incorporated into the cyanoacrylic acid as an anchoring-acceptor unit in this system resulted in a higher LUMO level. The charge distribution of the dyes was also proved by DFT calculations using the Spartan10 program with the parameters of B3LYP and 6-31G** basis set. Finally the photovoltaic performances were investigated under standard AM 1.5 illumination with a power of 100 mW/cm(2) using an ionic liquid based electrolyte. The power conversion efficiencies, eta, were increased from 3.16% to 3.81% by using thiophene instead of phenylene as a pi-bridge unit. (C) 2014 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.electacta.2014.09.138
dc.identifier.endpage625en_US
dc.identifier.issn0013-4686
dc.identifier.issn1873-3859
dc.identifier.issn0013-4686en_US
dc.identifier.issn1873-3859en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage617en_US
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2014.09.138
dc.identifier.urihttps://hdl.handle.net/11454/49482
dc.identifier.volume147en_US
dc.identifier.wosWOS:000346178800078en_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.ispartofElectrochimica Actaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectdonor-acceptor dyesen_US
dc.subjectpi-bridge effecten_US
dc.subjectdye sensitized solar cellsen_US
dc.titleEffect of a pi-bridging unit in triphenylamine-benzothiadiazole based donor acceptor chromophores for dye-sensitized solar cellsen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu