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  • Alsufyani, MaryamKing Abdullah Univ Sci & Technol KAUST, Saudi Arabia (author)

The effect of aromatic ring size in electron deficient semiconducting polymers for n-type organic thermoelectrics

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020
  • ROYAL SOC CHEMISTRY,2020
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:liu-171717
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-171717URI
  • https://doi.org/10.1039/d0tc03347bDOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

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

Notes

  • Funding Agencies|King Abdullah University of Science and Technology Office of Sponsored Research (OSR) [OSR-2018-CARF/CCF-3079, OSR-2015-CRG4-2572, OSR-4106 CPF2019]; EC FP7 Project SC2 [610115]; ECEuropean CommissionEuropean Commission Joint Research CentreEuropean Community (EC) [643791]; EPSRCEngineering & Physical Sciences Research Council (EPSRC) [EP/G037515/1, EP/M005143/1, EP/L016702/1]; National Science FoundationNational Science Foundation (NSF) [NSF DMR-1751308]; DOE Office of ScienceUnited States Department of Energy (DOE) [DE-AC02-06CH11357]; Swedish Research CouncilSwedish Research Council [2016-03979]; AForsk [18-313, 19-310]; Olle Engkvists Stiftelse [204-0256]; Advanced Functional Materials Center at Linkoping University [2009-00971]
  • N-type semiconducting polymers have been recently utilized in thermoelectric devices, however they have typically exhibited low electrical conductivities and poor device stability, in contrast to p-type semiconductors, which have been much higher performing. This is due in particular to the n-type semiconductors low doping efficiency, and poor charge carrier mobility. Strategies to enhance the thermoelectric performance of n-type materials include optimizing the electron affinity (EA) with respect to the dopant to improve the doping process and increasing the charge carrier mobility through enhanced molecular packing. Here, we report the design, synthesis and characterization of fused electron-deficient n-type copolymers incorporating the electron withdrawing lactone unit along the backbone. The polymers were synthesized using metal-free aldol condensation conditions to explore the effect of enlarging the central phenyl ring to a naphthalene ring, on the electrical conductivity. When n-doped with N-DMBI, electrical conductivities of up to 0.28 S cm(-1), Seebeck coefficients of -75 mu V K-1 and maximum Power factors of 0.16 mu W m(-1) K-2 were observed from the polymer with the largest electron affinity of -4.68 eV. Extending the aromatic ring reduced the electron affinity, due to reducing the density of electron withdrawing groups and subsequently the electrical conductivity reduced by almost two orders of magnitude.

Subject headings and genre

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

  • Hallani, Rawad K.King Abdullah Univ Sci & Technol KAUST, Saudi Arabia (author)
  • Wang, SuhaoLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)suhwa83 (author)
  • Xiao, MingfeiUniv Cambridge, England (author)
  • Ji, XudongNorthwestern Univ, IL 60208 USA (author)
  • Paulsen, Bryan D.Northwestern Univ, IL 60208 USA (author)
  • Xu, KaiLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)kaixu38 (author)
  • Bristow, HelenUniv Cambridge, England (author)
  • Chen, HuKing Abdullah Univ Sci & Technol KAUST, Saudi Arabia (author)
  • Chen, XingxingKing Abdullah Univ Sci & Technol KAUST, Saudi Arabia (author)
  • Sirringhaus, HenningKing Abdullah Univ Sci & Technol KAUST, Saudi Arabia (author)
  • Rivnay, JonathanNorthwestern Univ, IL 60208 USA (author)
  • Fabiano, SimoneLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)simfa84 (author)
  • McCulloch, IainKing Abdullah Univ Sci & Technol KAUST, Saudi Arabia; Univ Oxford, England (author)
  • King Abdullah Univ Sci & Technol KAUST, Saudi ArabiaLaboratoriet för organisk elektronik (creator_code:org_t)

Related titles

  • In:Journal of Materials Chemistry C: ROYAL SOC CHEMISTRY8:43, s. 15150-151572050-75262050-7534

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