In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor
Abstract Flexible thermoelectric composites are promising in harvesting low‐temperature energies and have a wide range of applications in wearable devices. However, the uncontrollable interfaces between the components significantly scatter the transport of electrons leading to a reduced thermoelectr...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-01-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202400566 |
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| author | Dezhuang Ji Baosong Li Balamurugan Thirumal Raj Xuan Li Dawei Zhang Moh'd Rezeq Wesley Cantwell Lianxi Zheng |
| author_facet | Dezhuang Ji Baosong Li Balamurugan Thirumal Raj Xuan Li Dawei Zhang Moh'd Rezeq Wesley Cantwell Lianxi Zheng |
| author_sort | Dezhuang Ji |
| collection | DOAJ |
| description | Abstract Flexible thermoelectric composites are promising in harvesting low‐temperature energies and have a wide range of applications in wearable devices. However, the uncontrollable interfaces between the components significantly scatter the transport of electrons leading to a reduced thermoelectric performance. In this research, hydrochloride acid doped polyaniline (PANI) is directly prepared on the surface of a single‐walled carbon nanotube (SWCNT) film to form a bilayer structure in controlling the interfacial filtering effect and preserve the high conductivity. Under optimal conditions, a PANI/SWCNT bilayer composite exhibits a Seebeck coefficient of 26 µVK−1 at near room temperature, and a high electrical conductivity of 1320 S cm−1 is maintained. The Seebeck coefficient is a twofold increase compared to a pure SWCNT film, while the power factor is three times the value from a pure SWCNT film and 500 times that from a solution‐mixed PANI/SWCNT composite. The enhanced thermoelectric performance is attributed to SWCNT‐assisted growth through π–π interaction promoting the formation of an oriented and compacted PANI layer, and the bilayer structure can also maximally maintain the electrical conductivity of the composite. The bilayer composite has then been investigated as an energy harvester and a temperature sensor, indicating its reliable performance in wearable applications. |
| format | Article |
| id | doaj-art-1b1ef80675cb44c1a4056b65ed5f8cb8 |
| institution | Kabale University |
| issn | 2196-7350 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-1b1ef80675cb44c1a4056b65ed5f8cb82025-01-03T08:39:29ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-01-01121n/an/a10.1002/admi.202400566In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power FactorDezhuang Ji0Baosong Li1Balamurugan Thirumal Raj2Xuan Li3Dawei Zhang4Moh'd Rezeq5Wesley Cantwell6Lianxi Zheng7Department of Mechanical and Nuclear Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Aerospace Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Mechanical and Nuclear Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Mechanical and Nuclear Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Mechanical and Nuclear Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Physics Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Aerospace Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEDepartment of Mechanical and Nuclear Engineering Khalifa University of Science and Technology Abu Dhabi P.O. Box 127788 UAEAbstract Flexible thermoelectric composites are promising in harvesting low‐temperature energies and have a wide range of applications in wearable devices. However, the uncontrollable interfaces between the components significantly scatter the transport of electrons leading to a reduced thermoelectric performance. In this research, hydrochloride acid doped polyaniline (PANI) is directly prepared on the surface of a single‐walled carbon nanotube (SWCNT) film to form a bilayer structure in controlling the interfacial filtering effect and preserve the high conductivity. Under optimal conditions, a PANI/SWCNT bilayer composite exhibits a Seebeck coefficient of 26 µVK−1 at near room temperature, and a high electrical conductivity of 1320 S cm−1 is maintained. The Seebeck coefficient is a twofold increase compared to a pure SWCNT film, while the power factor is three times the value from a pure SWCNT film and 500 times that from a solution‐mixed PANI/SWCNT composite. The enhanced thermoelectric performance is attributed to SWCNT‐assisted growth through π–π interaction promoting the formation of an oriented and compacted PANI layer, and the bilayer structure can also maximally maintain the electrical conductivity of the composite. The bilayer composite has then been investigated as an energy harvester and a temperature sensor, indicating its reliable performance in wearable applications.https://doi.org/10.1002/admi.202400566PANIsurface polymerizationSWCNTthermoelectricπ–π bonding |
| spellingShingle | Dezhuang Ji Baosong Li Balamurugan Thirumal Raj Xuan Li Dawei Zhang Moh'd Rezeq Wesley Cantwell Lianxi Zheng In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor Advanced Materials Interfaces PANI surface polymerization SWCNT thermoelectric π–π bonding |
| title | In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor |
| title_full | In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor |
| title_fullStr | In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor |
| title_full_unstemmed | In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor |
| title_short | In Situ Surface Polymerization of PANI/SWCNT Bilayer Film: Effective Composite for Improving Seebeck Coefficient and Power Factor |
| title_sort | in situ surface polymerization of pani swcnt bilayer film effective composite for improving seebeck coefficient and power factor |
| topic | PANI surface polymerization SWCNT thermoelectric π–π bonding |
| url | https://doi.org/10.1002/admi.202400566 |
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