A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential
Abstract Moisture-driven electricity generators (MEGs) have been extensively researched; however, high-performance flexible variants have seldom been demonstrated. Here we present a novel complex coacervation with built-in potential strategy for developing a high-performance uniaxial MEG, featuring...
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| Format: | Article |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54442-4 |
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| author | Guangtao Zan Wei Jiang HoYeon Kim Kaiying Zhao Shengyou Li Kyuho Lee Jihye Jang Gwanho Kim EunAe Shin Woojoong Kim Jin Woo Oh Yeonji Kim Jong Woong Park Taebin Kim Seonju Lee Ji Hye Oh Jowon Shin Hyeong Jun Kim Cheolmin Park |
| author_facet | Guangtao Zan Wei Jiang HoYeon Kim Kaiying Zhao Shengyou Li Kyuho Lee Jihye Jang Gwanho Kim EunAe Shin Woojoong Kim Jin Woo Oh Yeonji Kim Jong Woong Park Taebin Kim Seonju Lee Ji Hye Oh Jowon Shin Hyeong Jun Kim Cheolmin Park |
| author_sort | Guangtao Zan |
| collection | DOAJ |
| description | Abstract Moisture-driven electricity generators (MEGs) have been extensively researched; however, high-performance flexible variants have seldom been demonstrated. Here we present a novel complex coacervation with built-in potential strategy for developing a high-performance uniaxial MEG, featuring a core of poly(3,4-ethylenedioxythiophene) (PEDOT) with a built-in charge potential and a gel shell composed of poly(diallyldimethylammonium chloride) (PDDA) and sodium alginate (NaAlg) coacervate. The complex coacervation of two oppositely charged polyelectrolytes produces extra mobile carriers and free volume in the device; meanwhile, the PEDOT core’s surface charge significantly accelerates carrier diffusion. Consequently, the uniaxial fiber-based MEG demonstrates breakthrough performance, achieving an output voltage of up to 0.8 V, a maximum current density of 1.05 mA/cm2, and a power density of 184 μW/cm2 at 20% relative humidity. Moreover, the mechanical robustness is ensured for the PEDOT nanoribbon substrate without performance degradation even after 100,000 folding cycles, making it suitable for self-powered human interactive sensor and synapse. Notably, we have constructed the inaugural MEG-synapse self-powered device, with a fiber-based MEG successfully operating a synaptic memristor, thereby emulating autonomous human synapses linked with fibrous neurons. Overall, this work pioneers innovative design strategies and application scenarios for high-performance MEGs. |
| format | Article |
| id | doaj-art-92ba17b0c3d04ad39d12fbef82e308be |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-92ba17b0c3d04ad39d12fbef82e308be2025-08-20T02:33:05ZengNature PortfolioNature Communications2041-17232024-11-0115111310.1038/s41467-024-54442-4A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potentialGuangtao Zan0Wei Jiang1HoYeon Kim2Kaiying Zhao3Shengyou Li4Kyuho Lee5Jihye Jang6Gwanho Kim7EunAe Shin8Woojoong Kim9Jin Woo Oh10Yeonji Kim11Jong Woong Park12Taebin Kim13Seonju Lee14Ji Hye Oh15Jowon Shin16Hyeong Jun Kim17Cheolmin Park18Department of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Materials Science and Engineering, Yonsei UniversityDepartment of Chemical and Biomolecular Engineering, Sogang UniversityDepartment of Chemical and Biomolecular Engineering, Sogang UniversityDepartment of Materials Science and Engineering, Yonsei UniversityAbstract Moisture-driven electricity generators (MEGs) have been extensively researched; however, high-performance flexible variants have seldom been demonstrated. Here we present a novel complex coacervation with built-in potential strategy for developing a high-performance uniaxial MEG, featuring a core of poly(3,4-ethylenedioxythiophene) (PEDOT) with a built-in charge potential and a gel shell composed of poly(diallyldimethylammonium chloride) (PDDA) and sodium alginate (NaAlg) coacervate. The complex coacervation of two oppositely charged polyelectrolytes produces extra mobile carriers and free volume in the device; meanwhile, the PEDOT core’s surface charge significantly accelerates carrier diffusion. Consequently, the uniaxial fiber-based MEG demonstrates breakthrough performance, achieving an output voltage of up to 0.8 V, a maximum current density of 1.05 mA/cm2, and a power density of 184 μW/cm2 at 20% relative humidity. Moreover, the mechanical robustness is ensured for the PEDOT nanoribbon substrate without performance degradation even after 100,000 folding cycles, making it suitable for self-powered human interactive sensor and synapse. Notably, we have constructed the inaugural MEG-synapse self-powered device, with a fiber-based MEG successfully operating a synaptic memristor, thereby emulating autonomous human synapses linked with fibrous neurons. Overall, this work pioneers innovative design strategies and application scenarios for high-performance MEGs.https://doi.org/10.1038/s41467-024-54442-4 |
| spellingShingle | Guangtao Zan Wei Jiang HoYeon Kim Kaiying Zhao Shengyou Li Kyuho Lee Jihye Jang Gwanho Kim EunAe Shin Woojoong Kim Jin Woo Oh Yeonji Kim Jong Woong Park Taebin Kim Seonju Lee Ji Hye Oh Jowon Shin Hyeong Jun Kim Cheolmin Park A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential Nature Communications |
| title | A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential |
| title_full | A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential |
| title_fullStr | A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential |
| title_full_unstemmed | A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential |
| title_short | A core–shell fiber moisture-driven electric generator enabled by synergetic complex coacervation and built-in potential |
| title_sort | core shell fiber moisture driven electric generator enabled by synergetic complex coacervation and built in potential |
| url | https://doi.org/10.1038/s41467-024-54442-4 |
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