Observation of anomalously large Nernst effects in conducting polymers
Abstract As a fundamental thermoelectric phenomenon in many solid-state materials, the Nernst effect has yet to be observed in conducting polymers. This knowledge could provide important insight into their elusive mechanism, which are crucial for flexible optoelectronic and thermoelectric applicatio...
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Nature Portfolio
2025-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-55976-x |
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| author | Yingqiao Ma Xinglong Ren Ye Zou Wenrui Zhao Dongyang Wang Zhen Ji Juncheng Fan Chaoyi Yan Lanyi Xiang Gaoyang Ge Xiaojuan Dai Fengjiao Zhang Ting Lei Henning Sirringhaus Chong-an Di Daoben Zhu |
| author_facet | Yingqiao Ma Xinglong Ren Ye Zou Wenrui Zhao Dongyang Wang Zhen Ji Juncheng Fan Chaoyi Yan Lanyi Xiang Gaoyang Ge Xiaojuan Dai Fengjiao Zhang Ting Lei Henning Sirringhaus Chong-an Di Daoben Zhu |
| author_sort | Yingqiao Ma |
| collection | DOAJ |
| description | Abstract As a fundamental thermoelectric phenomenon in many solid-state materials, the Nernst effect has yet to be observed in conducting polymers. This knowledge could provide important insight into their elusive mechanism, which are crucial for flexible optoelectronic and thermoelectric applications. However, within the Landau’s Fermi-liquid picture, the Nernst coefficient has demonstrated to be proportional to the charge mobility, and thus should be negligible in less ordered polymers with inherent low mobility. Here, we challenge this notion by observing an anomalously large Nernst effect in a range of conducting polymers. Specially, the Nernst coefficients in these doped polymers exceed the Fermi-liquid predictions by 2-3 orders of magnitudes with negative mobility dependence. These intriguing observations are attributed to the intrinsic quasi-one-dimensional transport nature in conjugated polymers and their unique chemical doping mechanism. Our research not only provides experimental insights into the non-Fermi-liquid charge transport nature of polymers, but also suggests its universality for other quasi-one-dimensional materials and/or less ordered systems, and opens up exciting possibilities for developing transverse organic thermoelectric applications. |
| format | Article |
| id | doaj-art-e887accf01454337b9cbe1463158d8ae |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-e887accf01454337b9cbe1463158d8ae2025-02-09T12:45:48ZengNature PortfolioNature Communications2041-17232025-02-0116111010.1038/s41467-025-55976-xObservation of anomalously large Nernst effects in conducting polymersYingqiao Ma0Xinglong Ren1Ye Zou2Wenrui Zhao3Dongyang Wang4Zhen Ji5Juncheng Fan6Chaoyi Yan7Lanyi Xiang8Gaoyang Ge9Xiaojuan Dai10Fengjiao Zhang11Ting Lei12Henning Sirringhaus13Chong-an Di14Daoben Zhu15Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesOptoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson AvenueBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesOptoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson AvenueSchool of Chemical Sciences, University of Chinese Academy of SciencesSchool of Chemical Sciences, University of Chinese Academy of SciencesKey Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesSchool of Chemical Sciences, University of Chinese Academy of SciencesKey Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking UniversityOptoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson AvenueBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of SciencesAbstract As a fundamental thermoelectric phenomenon in many solid-state materials, the Nernst effect has yet to be observed in conducting polymers. This knowledge could provide important insight into their elusive mechanism, which are crucial for flexible optoelectronic and thermoelectric applications. However, within the Landau’s Fermi-liquid picture, the Nernst coefficient has demonstrated to be proportional to the charge mobility, and thus should be negligible in less ordered polymers with inherent low mobility. Here, we challenge this notion by observing an anomalously large Nernst effect in a range of conducting polymers. Specially, the Nernst coefficients in these doped polymers exceed the Fermi-liquid predictions by 2-3 orders of magnitudes with negative mobility dependence. These intriguing observations are attributed to the intrinsic quasi-one-dimensional transport nature in conjugated polymers and their unique chemical doping mechanism. Our research not only provides experimental insights into the non-Fermi-liquid charge transport nature of polymers, but also suggests its universality for other quasi-one-dimensional materials and/or less ordered systems, and opens up exciting possibilities for developing transverse organic thermoelectric applications.https://doi.org/10.1038/s41467-025-55976-x |
| spellingShingle | Yingqiao Ma Xinglong Ren Ye Zou Wenrui Zhao Dongyang Wang Zhen Ji Juncheng Fan Chaoyi Yan Lanyi Xiang Gaoyang Ge Xiaojuan Dai Fengjiao Zhang Ting Lei Henning Sirringhaus Chong-an Di Daoben Zhu Observation of anomalously large Nernst effects in conducting polymers Nature Communications |
| title | Observation of anomalously large Nernst effects in conducting polymers |
| title_full | Observation of anomalously large Nernst effects in conducting polymers |
| title_fullStr | Observation of anomalously large Nernst effects in conducting polymers |
| title_full_unstemmed | Observation of anomalously large Nernst effects in conducting polymers |
| title_short | Observation of anomalously large Nernst effects in conducting polymers |
| title_sort | observation of anomalously large nernst effects in conducting polymers |
| url | https://doi.org/10.1038/s41467-025-55976-x |
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