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Organic Conjugated Trimers with Donor–Acceptor–Donor Structures for Photocatalytic Hydrogen Generation Application

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.authorYUAN, Xiaojiao
hal.structure.identifierInstitut de Chimie Physique [ICP]
dc.contributor.authorWANG, Cong
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.authorVALLAN, Lorenzo
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorBUI, Anh Thy
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorJONUSAUSKAS, Gediminas
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorMCCLENAGHAN, Nathan
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorGRAZON, Chloé
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorLACOMME, Sabrina
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.authorBROCHON, Cyril
hal.structure.identifierInstitut de Chimie Physique [ICP]
dc.contributor.authorREMITA, Hynd
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.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorCLOUTET, Eric
dc.date.issued2023-01-22
dc.identifier.issn1616-301X
dc.description.abstractEnOrganic donor-acceptor-donor (D-AD) polymers or small molecules are widely investigated in organic solar cells (OSC) due to their broad light absorption, narrow band gap, excellent charge mobility and exciton seperation at the interface. However, studies of conjugated small molecules with D-AD molecule structures as photocatalytically active materials are still rare. In this work, we give an unprecedented demonstration that photocatalytic activity can in fact be affected by tuning the D and A. Especially, the EBE trimer, comprising 3,4-ethylenedioxythiophene (E) and benzothiadiazole (B) units, exhibits the best photophysical, chemical and photocatalytic properties compared to other D-AD combinations of D and A. Detailed kinetic studies show that all these trimers in organic solution present relatively long-lived and highly emissive photogenerated singlet excitons (τ = 4-13 ns; φem = 0.5-0.9) as judged by photoluminescence and transient absorption measurements, while in specific cases formation of long-lived triplet states can be identified. Organic microparticles of the trimers are efficiently formed in aqueous solution by nanoprecipitation, and rapid photoinduced electron release/injection to the solvent is evidenced spectroscopically. The results indicate that organic small molecule structures with D-AD structures pave a new pathway for photocatalytic solar-to-chemical energy conversion of novel small organic molecules.
dc.language.isoen
dc.publisherWiley
dc.subject.enConjugated trimers D-A-D organic semiconductor photocatalysis hydrogen generation
dc.subject.enConjugated trimers
dc.subject.enD-A-D
dc.subject.enorganic semiconductor
dc.subject.enphotocatalysis
dc.subject.enhydrogen generation
dc.title.enOrganic Conjugated Trimers with Donor–Acceptor–Donor Structures for Photocatalytic Hydrogen Generation Application
dc.typeArticle de revue
dc.identifier.doi10.1002/adfm.202211730
dc.subject.halChimie
dc.description.sponsorshipEuropeHyPhOE
bordeaux.journalAdvanced Functional Materials
bordeaux.page2211730
bordeaux.peerReviewedoui
hal.identifierhal-03951365
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03951365v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Advanced%20Functional%20Materials&rft.date=2023-01-22&rft.spage=2211730&rft.epage=2211730&rft.eissn=1616-301X&rft.issn=1616-301X&rft.au=YUAN,%20Xiaojiao&WANG,%20Cong&VALLAN,%20Lorenzo&BUI,%20Anh%20Thy&JONUSAUSKAS,%20Gediminas&rft.genre=article


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