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A [3,2-b]thienothiophene-alt-benzothiadiazole copolymer for photovoltaic applications: design, synthesis, material characterization and device performances

dc.rights.licenseopen
hal.structure.identifierEcole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
hal.structure.identifierUniv Strasbourg, Inst Elect Solide & Syst
dc.contributor.authorBINIEK, Laure
hal.structure.identifierEcole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
dc.contributor.authorCHOCHOS, Christos L.
hal.structure.identifierEcole nationale supérieure de chimie, polymères et materiaux de strasbourg (ECPM)
dc.contributor.authorLECLERC, Nicolas
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorHADZIIOANNOU, Georges
hal.structure.identifierDepartment of Chemistry [Patras]
dc.contributor.authorKALLITSIS, Joannis K.
hal.structure.identifierUniv Strasbourg, Inst Elect Solide & Syst
dc.contributor.authorBECHARA, Rony
hal.structure.identifierUniv Strasbourg, Inst Elect Solide & Syst
dc.contributor.authorLÉVÊQUE, Patrick
hal.structure.identifierUniv Strasbourg, Inst Elect Solide & Syst
dc.contributor.authorHEISER, Thomas
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2009
dc.identifier.issn0959-9428
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20378
dc.description.abstractEnThe synthesis of a new alternating copolymer (PTBzT(2)-C12) based on a thiophene-benzothiadiazole-thiophene (TBzT) segment and a thieno[3,2-b]thiophene unit and its utilization as electron donor in photovoltaic bulk heterojunctions are reported. The copolymer has been obtained via a Stille cross-coupling reaction. The material's optical and electrochemical properties, in solution or in thin films, have been investigated using UV-visible absorption as well as photoluminescence spectroscopy and cyclic voltammetry. A significant red-shift of the absorption edge is observed during film formation, leading to an optical bandgap of 1.88 eV. The polymer ionisation potential is as high as 5.3 eV and makes the material particularly interesting for photovoltaic applications since it is a prerequisite for high open circuit voltages and better chemical stability. Bulk heterojunction solar cells using blends of the copolymer, as the electron donor, and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), as the electron transporting material, have been elaborated. A power conversion efficiency of 1% is achieved with a 1:4 PTBzT(2)-C12:PCBM weight ratio and a 30 nm semi-transparent active layer. The open-circuit voltage is equal to 0.74 V and agrees with the expected value. It is anticipated from the copolymer optoelectronic properties, that this novel material should allow power conversion efficiencies above 5% after further optimization of the processing steps.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enCARRIER MOBILITY
dc.subject.enSELF-ORGANIZATION
dc.subject.enORGANIC PHOTOVOLTAICS
dc.subject.enPOLYMER SOLAR-CELLS
dc.subject.enTHIN-FILM TRANSISTORS
dc.subject.enNARROW-BAND-GAP
dc.subject.enPOLYFLUORENE COPOLYMER/FULLERENE BLENDS
dc.subject.enFIELD-EFFECT TRANSISTORS
dc.subject.enPI-CONJUGATED SYSTEMS
dc.subject.enACCEPTOR UNITS
dc.title.enA [3,2-b]thienothiophene-alt-benzothiadiazole copolymer for photovoltaic applications: design, synthesis, material characterization and device performances
dc.typeArticle de revue
dc.identifier.doi10.1039/b819177h
dc.subject.halChimie/Polymères
bordeaux.journalJournal of Materials Chemistry
bordeaux.page4946-4951
bordeaux.volume19
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue28
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00945107
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00945107v1
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