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Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymersoa mark
  • Yoon, Sang Eun ;
  • Kang, Yeongkwon ;
  • Im, Jaemin ;
  • Lee, Jiyun ;
  • Lee, Sang Yeon ;
  • Park, Jaehong ;
  • Gao, Yuan Jun ;
  • Jeon, Dohyeon ;
  • Son, Ji Yoen ;
  • Kim, Jisu ;
  • Kousseff, Christina J. ;
  • Kim, Taekyeong ;
  • Seo, Hyungtak ;
  • Kang, Keehoon ;
  • McCulloch, Iain ;
  • Kwak, Sang Kyu ;
  • Choi, Hyun Ho ;
  • Kim, Bong Gi ;
  • Kim, Jong H.


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dc.contributor.authorYoon, Sang Eun-
dc.contributor.authorKang, Yeongkwon-
dc.contributor.authorIm, Jaemin-
dc.contributor.authorLee, Jiyun-
dc.contributor.authorLee, Sang Yeon-
dc.contributor.authorPark, Jaehong-
dc.contributor.authorGao, Yuan Jun-
dc.contributor.authorJeon, Dohyeon-
dc.contributor.authorSon, Ji Yoen-
dc.contributor.authorKim, Jisu-
dc.contributor.authorKousseff, Christina J.-
dc.contributor.authorKim, Taekyeong-
dc.contributor.authorSeo, Hyungtak-
dc.contributor.authorKang, Keehoon-
dc.contributor.authorMcCulloch, Iain-
dc.contributor.authorKwak, Sang Kyu-
dc.contributor.authorChoi, Hyun Ho-
dc.contributor.authorKim, Bong Gi-
dc.contributor.authorKim, Jong H.-
dc.date.issued2023-10-18-
dc.identifier.issn2542-4351-
dc.identifier.urihttps://dspace.ajou.ac.kr/dev/handle/2018.oak/33708-
dc.description.abstractOrganic thermoelectric (TE) attracts considerable interest as a next-generation energy conversion technology; however, its practical application is still restricted by low power factors. Herein, we report a generally applicable solvent-combination doping method for improving TE properties of conjugated polymers (CPs). Residual solvents in a ternary solvent enlarged the free volume in the CP films. This beneficial effect boosted both dopant diffusion efficiency and charge carrier density in the doped films, resulting in the remarkable enhancement of electrical conductivity in the CPs. When the doped CP films processed with a ternary solvent were applied to TE devices, excellent power factors were achieved, attributed to a durable Seebeck coefficient along with ultrahigh electrical conductivity.-
dc.description.sponsorshipS.E.Y. Y.K, J.I, and J.L contributed equally to this work. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (NRF-2021R1A2C1007304, NRF-2021K1A4A7A03093851, 2019R1A6A1A11051471, 2021R1A5A6002853, 2020R1A6A1A03038697, 2020R1C1C1012690, NRF-2021R1A2C4002030, and 2021R1C1C1010266). The computational resources were provided by the Korea Institute of Science and Technology Information (KISTI) (KSC-2021-CRE-0518). S.K.K. H.H.C. B.-G.K. and J.H.K. conceived the idea, designed the research, and wrote a manuscript. S.E.Y. fabricated devices and characterized electrical conductivity and thermoelectric properties of doped polymer films with support from J.I. S.Y.L. D.J. J.Y.S. J.K. T.K. H.S. and K.K. Y.K. C.J.K. I.M. and J.P. synthesized the polymers and performed UV-vis and ESR spectra measurements. J.L. and Y.J.G. conducted the computational calculations. K.K. S.K.K. H.H.C. B.-G.K. and J.H.K. supervised this project. All authors discussed the results. The authors declare no competing interests. We support inclusive, diverse, and equitable conduct of research.-
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government ( NRF-2021R1A2C1007304 , NRF-2021K1A4A7A03093851 , 2019R1A6A1A11051471 , 2021R1A5A6002853 , 2020R1A6A1A03038697 , 2020R1C1C1012690 , NRF-2021R1A2C4002030 , and 2021R1C1C1010266 ). The computational resources were provided by the Korea Institute of Science and Technology Information (KISTI) ( KSC-2021-CRE-0518 ).-
dc.language.isoeng-
dc.publisherCell Press-
dc.subject.meshDopant-diffusion-
dc.subject.meshElectrical conductivity-
dc.subject.meshMetallics-
dc.subject.meshMolecular doping-
dc.subject.meshOrganic thermoelectric-
dc.subject.meshOrganics-
dc.subject.meshPower factors-
dc.subject.meshSemi-metallic electrical conductivity-
dc.subject.meshSolvent combination-
dc.subject.meshThermoelectric-
dc.titleEnhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers-
dc.typeArticle-
dc.citation.endPage2317-
dc.citation.startPage2291-
dc.citation.titleJoule-
dc.citation.volume7-
dc.identifier.bibliographicCitationJoule, Vol.7, pp.2291-2317-
dc.identifier.doi10.1016/j.joule.2023.09.002-
dc.identifier.scopusid2-s2.0-85173208088-
dc.identifier.urlhttps://www.journals.elsevier.com/joule-
dc.subject.keywordconjugated polymers-
dc.subject.keyworddopant diffusion-
dc.subject.keywordmolecular doping-
dc.subject.keywordorganic thermoelectric-
dc.subject.keywordpower factor-
dc.subject.keywordsemi-metallic electrical conductivity-
dc.subject.keywordsolvent combination-
dc.description.isoatrue-
dc.subject.subareaEnergy (all)-
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