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  • Holzer, IsabelleUniv Bern, Switzerland (författare)

Side chain engineering in indacenodithiophene-co-benzothiadiazole and its impact on mixed ionic-electronic transport properties

  • Artikel/kapitelEngelska2024

Förlag, utgivningsår, omfång ...

  • 2024
  • ROYAL SOC CHEMISTRY,2024
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-201318
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-201318URI
  • https://doi.org/10.1039/d3tc04738eDOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Funding Agencies|European Commission [964677, 2.5020.11]; European Commission Horizon 2020 Future and Emerging Technologies (FET) [1117545]; Walloon Region; National Science Foundation [DMR-1751308]; NSF [DE-AC02-06CH11357]; DOE Office of Science by Argonne National Laboratory
  • Organic semiconductors are increasingly being decorated with hydrophilic solubilising chains to create materials that can function as mixed ionic-electronic conductors, which are promising candidates for interfacing biological systems with organic electronics. While numerous organic semiconductors, including p- and n-type materials, small molecules and polymers, have been successfully tailored to encompass mixed conduction properties, common to all these systems is that they have been semicrystalline materials. Here, we explore how side chain engineering in the nano-crystalline indacenodithiophene-co-benzothiadiazole (IDTBT) polymer can be used to instil ionic transport properties and how this in turn influences the electronic transport properties. This allows us to ultimately assess the mixed ionic-electronic transport properties of these new IDTBT polymers using the organic electrochemical transistor as the testing platform. Using a complementary experimental and computational approach, we find that polar IDTBT derivatives can be infiltrated by water and solvated ions, they can be electrochemically doped efficiently in aqueous electrolyte with fast doping kinetics, and upon aqueous swelling there is no deterioration of the close interchain contacts that are vital for efficient charge transport in the IDTBT system. Despite these promising attributes, mixed ionic-electronic charge transport properties are surprisingly poor in all the polar IDTBT derivatives. Albeit a "negative" result, this finding clearly contradicts established side chain engineering rules for mixed ionic-electronic conductors, which motivated our continued investigation of this system. We eventually find this anomalous behaviour to be caused by increasing energetic disorder in the polymers with increasing polar side chain content. We have investigated computationally how the polar side chain motifs contribute to this detrimental energetic inhomogeneity and ultimately use the learnings to propose new molecular design criteria for side chains that can facilitate ion transport without impeding electronic transport.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Lemaur, VincentUniv Mons, Belgium (författare)
  • Wang, MengQueen Mary Univ London, England; Chinese Acad Sci, Peoples R China (författare)
  • Wu, HanyanLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)hanwu54 (författare)
  • Zhang, LuCavendish Lab, England (författare)
  • Marcial-Hernandez, RaymundoQueen Mary Univ London, England (författare)
  • Gilhooly-Finn, PeterQueen Mary Univ London, England (författare)
  • Cavassin, PriscilaUniv Bern, Switzerland (författare)
  • Hoyas, SebastienUniv Mons, Belgium; Univ Mons UMONS, Belgium (författare)
  • Meli, DilaraNorthwestern Univ, IL 60208 USA (författare)
  • Wu, RuihengNorthwestern Univ, IL 60208 USA (författare)
  • Paulsen, Bryan D.Northwestern Univ, IL 60208 USA (författare)
  • Strzalka, JosephX Ray Sci Div, IL 60439 USA (författare)
  • Liscio, AndreaCNR, Italy (författare)
  • Rivnay, JonathanNorthwestern Univ, IL 60208 USA; Northwestern Univ, IL 60611 USA (författare)
  • Sirringhaus, HenningCavendish Lab, England (författare)
  • Banerji, NatalieUniv Bern, Switzerland (författare)
  • Beljonne, DavidUniv Mons, Belgium (författare)
  • Fabiano, SimoneLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)simfa84 (författare)
  • Nielsen, Christian B.Queen Mary Univ London, England (författare)
  • Univ Bern, SwitzerlandUniv Mons, Belgium (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Materials Chemistry C: ROYAL SOC CHEMISTRY2050-75262050-7534

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