In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation
Abstract Donor-acceptor semiconducting polymers present countless opportunities for application in photocatalysis. Previous studies have showcased their advantages through direct bottom-up methods. Unfortunately, these approaches often involve harsh reaction conditions, overlooking the impact of unc...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-45604-5 |
| _version_ | 1797273921670610944 |
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| author | Chang Cheng Jiaguo Yu Difa Xu Lei Wang Guijie Liang Liuyang Zhang Mietek Jaroniec |
| author_facet | Chang Cheng Jiaguo Yu Difa Xu Lei Wang Guijie Liang Liuyang Zhang Mietek Jaroniec |
| author_sort | Chang Cheng |
| collection | DOAJ |
| description | Abstract Donor-acceptor semiconducting polymers present countless opportunities for application in photocatalysis. Previous studies have showcased their advantages through direct bottom-up methods. Unfortunately, these approaches often involve harsh reaction conditions, overlooking the impact of uncontrolled polymerization degrees on photocatalysis. Besides, the mechanism behind the separation of electron-hole pairs (excitons) in donor-acceptor polymers remains elusive. This study presents a post-synthetic method involving the light-induced transformation of the building blocks of hyper-cross-linked polymers from donor-carbon-donor to donor-carbon-acceptor states, resulting in a polymer with a substantial intramolecular dipole moment. Thus, excitons are efficiently separated in the transformed polymer. The utility of this strategy is exemplified by the enhanced photocatalytic hydrogen peroxide synthesis. Encouragingly, our observations reveal the formation of intramolecular charge transfer states using time-resolved techniques, confirming transient exciton behavior involving separation and relaxation. This light-induced method not only guides the development of highly efficient donor-acceptor polymer photocatalysts but also applies to various fields, including organic solar cells, light-emitting diodes, and sensors. |
| first_indexed | 2024-03-07T14:51:02Z |
| format | Article |
| id | doaj.art-e9cc75818b5f48de8b063ad8c01767e2 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:51:02Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-e9cc75818b5f48de8b063ad8c01767e22024-03-05T19:42:01ZengNature PortfolioNature Communications2041-17232024-02-0115111210.1038/s41467-024-45604-5In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separationChang Cheng0Jiaguo Yu1Difa Xu2Lei Wang3Guijie Liang4Liuyang Zhang5Mietek Jaroniec6State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyHunan Key Laboratory of Applied Environmental Photocatalysis, Changsha UniversityHubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices, Hubei University of Arts and ScienceHubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices, Hubei University of Arts and ScienceLaboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of GeosciencesDepartment of Chemistry and Biochemistry, Kent State UniversityAbstract Donor-acceptor semiconducting polymers present countless opportunities for application in photocatalysis. Previous studies have showcased their advantages through direct bottom-up methods. Unfortunately, these approaches often involve harsh reaction conditions, overlooking the impact of uncontrolled polymerization degrees on photocatalysis. Besides, the mechanism behind the separation of electron-hole pairs (excitons) in donor-acceptor polymers remains elusive. This study presents a post-synthetic method involving the light-induced transformation of the building blocks of hyper-cross-linked polymers from donor-carbon-donor to donor-carbon-acceptor states, resulting in a polymer with a substantial intramolecular dipole moment. Thus, excitons are efficiently separated in the transformed polymer. The utility of this strategy is exemplified by the enhanced photocatalytic hydrogen peroxide synthesis. Encouragingly, our observations reveal the formation of intramolecular charge transfer states using time-resolved techniques, confirming transient exciton behavior involving separation and relaxation. This light-induced method not only guides the development of highly efficient donor-acceptor polymer photocatalysts but also applies to various fields, including organic solar cells, light-emitting diodes, and sensors.https://doi.org/10.1038/s41467-024-45604-5 |
| spellingShingle | Chang Cheng Jiaguo Yu Difa Xu Lei Wang Guijie Liang Liuyang Zhang Mietek Jaroniec In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation Nature Communications |
| title | In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation |
| title_full | In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation |
| title_fullStr | In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation |
| title_full_unstemmed | In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation |
| title_short | In-situ formatting donor-acceptor polymer with giant dipole moment and ultrafast exciton separation |
| title_sort | in situ formatting donor acceptor polymer with giant dipole moment and ultrafast exciton separation |
| url | https://doi.org/10.1038/s41467-024-45604-5 |
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