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  • Craighero, Mariavittoria,1995Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden (author)

Impact of Oligoether Side-Chain Length on the Thermoelectric Properties of a Polar Polythiophene

  • Article/chapterEnglish2024

Publisher, publication year, extent ...

  • AMER CHEMICAL SOC,2024
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:edec9ca0-e1d7-4265-8fa5-cacbaf87c2f0
  • https://doi.org/10.1021/acsaelm.3c00936DOI
  • https://research.chalmers.se/publication/537995URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-198676URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:for swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Funding Agencies|European Union [955837]; Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship Prolongation grant; Spanish Ministerio de Ciencia e Innovacion [CEX2019-000917-S, PID2020-119777GBI00, PDC2021-121814-I00]; China Scholarship Council [CSC201806950006]; Universitat Autonoma de Barcelona
  • Conjugated polymers with oligoether side chains make up a promising class of thermoelectric materials. In this work, the impact of the side-chain length on the thermoelectric and mechanical properties of polythiophenes is investigated. Polymers with tri-, tetra-, or hexaethylene glycol side chains are compared, and the shortest length is found to result in thin films with the highest degree of order upon doping with the p-dopant 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F(4)TCNQ). As a result, a stiff material with an electrical conductivity of up to 830 +/- 15 S cm(-1) is obtained, resulting in a thermoelectric power factor of about 21 mu W m(-1) K-2 in the case of as-cast films. Aging at ambient conditions results in an initial decrease in thermoelectric properties but then yields a highly stable performance for at least 3 months, with values of about 200 S cm(-1) and 5 mu W m(-1) K-2. Evidently, identification of the optimal side-chain length is an important criterion for the design of conjugated polymers for organic thermoelectrics.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Guo, JialiAgencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council,CSIC, Spain (author)
  • Zokaei, Sepideh,1991Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden(Swepub:cth)zokaei (author)
  • Griggs, SophieUniversity Of Oxford,Univ Oxford, England (author)
  • Tian, JunfuUniversity Of Oxford,Univ Oxford, England (author)
  • Asatryan, JesikaUniversidade da Coruña,University of A Coruña,Univ A Coruna, Spain (author)
  • Kimpel, Joost,1996Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden(Swepub:cth)kimpel (author)
  • Kroon, ReneeLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Linköping University(Swepub:liu)renkr29 (author)
  • Xu, KaiAgencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council,CSIC, Spain (author)
  • Reparaz, Juan SebastianAgencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council,CSIC, Spain (author)
  • Martin, JaimeUniversidade da Coruña,University of A Coruña,Univ A Coruna, Spain; POLYMAT, Spain (author)
  • Mcculloch, IainUniversity Of Oxford,Univ Oxford, England (author)
  • Campoy-Quiles, MarianoAgencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council,CSIC, Spain (author)
  • Müller, Christian,1980Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden(Swepub:cth)cmuller (author)
  • Chalmers tekniska högskolaChalmers Univ Technol, Sweden (creator_code:org_t)

Related titles

  • In:ACS Applied Electronic Materials: AMER CHEMICAL SOC6:5, s. 2909-29162637-6113

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