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  • Tu, SuoTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)

Improvement of the thermoelectric properties of PEDOT:PSS films via DMSO addition and DMSO/salt post-treatment resolved from a fundamental view

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • Elsevier BV,2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-306583
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-306583URI
  • https://doi.org/10.1016/j.cej.2021.132295DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

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

Notes

  • QC 20211220
  • The combination of dimethyl sulfoxide (DMSO)-solvent doping and physical-chemical DMSO/salt de-doping in a sequence has been used to improve the thermoelectric (TE) properties of poly(3,4-ethylenedioxythiophene):poly (4-styrenesulfonate) (PEDOT:PSS) films. A high power factor of ca.105.2 mu W m(-1) K-2 has been achieved for the PEDOT:PSS film after post-treatment with 10 % sodium sulfite (Na2SO3) in the DMSO/salt mixture (v/v), outperforming sodium bicarbonate (NaHCO3). The initial DMSO-doping treatment induces a distinct phase separation by facilitating the aggregation of the PEDOT molecules. At the same time, the subsequent DMSO/salt dedoping post-treatment strengthens the selective removal of the surplus non-conductive PSS chains. Substantial alterations in the oxidation level, chain conformations, PEDOT crystallites and their preferential orientation are observed upon treatment on the molecular level. At the mesoscale level, the purification and densification of PEDOT-rich domains enable the realization of inter-grain coupling by the formation of the electronically well-percolated network. Thereby, both electrical conductivity and Seebeck coefficient are optimized.

Subject headings and genre

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

  • Tian, TingTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Oechsle, Anna LenaTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Yin, ShanshanTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Jiang, XinyuTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Cao, WeiTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Li, NianTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Scheel, Manuel A.Tech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Reb, Lennart K.Tech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Hou, ShujinTech Univ Munich, Phys Energy Convers & Storage, Physik Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Bandarenka, Aliaksandr S.Tech Univ Munich, Phys Energy Convers & Storage, Physik Dept, James Franck Str 1, D-85748 Garching, Germany. (author)
  • Schwartzkopf, MatthiasDeutsch Elektronen Synchrotron DESY, Notkestr 85, D-22603 Hamburg, Germany. (author)
  • Roth, Stephan V.KTH,Fiber- och polymerteknologi,Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22603 Hamburg, Germany.(Swepub:kth)u1b0mjzr (author)
  • Muller-Buschbaum, PeterTech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany.;Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Garching, Germany. (author)
  • Tech Univ Munich, Lehrstuhl Funkt Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany.Tech Univ Munich, Phys Energy Convers & Storage, Physik Dept, James Franck Str 1, D-85748 Garching, Germany. (creator_code:org_t)

Related titles

  • In:Chemical Engineering Journal: Elsevier BV4291385-89471873-3212

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