Compositing effects for high thermoelectric performance of Cu2Se-based materials
Abstract Thermoelectric materials can realize direct conversion between heat and electricity, showing excellent potential for waste heat recovery. Cu2Se is a typical superionic conductor thermoelectric material having extraordinary ZT values, but its superionic feature causes poor service stability...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38054-y |
| _version_ | 1797836345686622208 |
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| author | Zhifang Zhou Yi Huang Bin Wei Yueyang Yang Dehong Yu Yunpeng Zheng Dongsheng He Wenyu Zhang Mingchu Zou Jin-Le Lan Jiaqing He Ce-Wen Nan Yuan-Hua Lin |
| author_facet | Zhifang Zhou Yi Huang Bin Wei Yueyang Yang Dehong Yu Yunpeng Zheng Dongsheng He Wenyu Zhang Mingchu Zou Jin-Le Lan Jiaqing He Ce-Wen Nan Yuan-Hua Lin |
| author_sort | Zhifang Zhou |
| collection | DOAJ |
| description | Abstract Thermoelectric materials can realize direct conversion between heat and electricity, showing excellent potential for waste heat recovery. Cu2Se is a typical superionic conductor thermoelectric material having extraordinary ZT values, but its superionic feature causes poor service stability and low mobility. Here, we reported a fast preparation method of self-propagating high-temperature synthesis to realize in situ compositing of BiCuSeO and Cu2Se to optimize the service stability. Additionally, using the interface design by introducing graphene in these composites, the carrier mobility could be obviously enhanced, and the strong phonon scatterings could lead to lower lattice thermal conductivity. Ultimately, the Cu2Se-BiCuSeO-graphene composites presented excellent thermoelectric properties with a ZT max value of ~2.82 at 1000 K and a ZT ave value of ~1.73 from 473 K to 1000 K. This work provides a facile and effective strategy to largely improve the performance of Cu2Se-based thermoelectric materials, which could be further adopted in other thermoelectric systems. |
| first_indexed | 2024-04-09T15:08:26Z |
| format | Article |
| id | doaj.art-509ce0c072b7470791b6f74a7b1d3cf2 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-09T15:08:26Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-509ce0c072b7470791b6f74a7b1d3cf22023-04-30T11:20:28ZengNature PortfolioNature Communications2041-17232023-04-011411910.1038/s41467-023-38054-yCompositing effects for high thermoelectric performance of Cu2Se-based materialsZhifang Zhou0Yi Huang1Bin Wei2Yueyang Yang3Dehong Yu4Yunpeng Zheng5Dongsheng He6Wenyu Zhang7Mingchu Zou8Jin-Le Lan9Jiaqing He10Ce-Wen Nan11Yuan-Hua Lin12State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityShenzhen Key Laboratory of Thermoelectric Materials, Department of Physics, Southern University of Science and TechnologyState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityAustralian Nuclear Science and Technology OrganisationState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityCore Research Facilities, Southern University of Science and TechnologyState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical TechnologyShenzhen Key Laboratory of Thermoelectric Materials, Department of Physics, Southern University of Science and TechnologyState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityAbstract Thermoelectric materials can realize direct conversion between heat and electricity, showing excellent potential for waste heat recovery. Cu2Se is a typical superionic conductor thermoelectric material having extraordinary ZT values, but its superionic feature causes poor service stability and low mobility. Here, we reported a fast preparation method of self-propagating high-temperature synthesis to realize in situ compositing of BiCuSeO and Cu2Se to optimize the service stability. Additionally, using the interface design by introducing graphene in these composites, the carrier mobility could be obviously enhanced, and the strong phonon scatterings could lead to lower lattice thermal conductivity. Ultimately, the Cu2Se-BiCuSeO-graphene composites presented excellent thermoelectric properties with a ZT max value of ~2.82 at 1000 K and a ZT ave value of ~1.73 from 473 K to 1000 K. This work provides a facile and effective strategy to largely improve the performance of Cu2Se-based thermoelectric materials, which could be further adopted in other thermoelectric systems.https://doi.org/10.1038/s41467-023-38054-y |
| spellingShingle | Zhifang Zhou Yi Huang Bin Wei Yueyang Yang Dehong Yu Yunpeng Zheng Dongsheng He Wenyu Zhang Mingchu Zou Jin-Le Lan Jiaqing He Ce-Wen Nan Yuan-Hua Lin Compositing effects for high thermoelectric performance of Cu2Se-based materials Nature Communications |
| title | Compositing effects for high thermoelectric performance of Cu2Se-based materials |
| title_full | Compositing effects for high thermoelectric performance of Cu2Se-based materials |
| title_fullStr | Compositing effects for high thermoelectric performance of Cu2Se-based materials |
| title_full_unstemmed | Compositing effects for high thermoelectric performance of Cu2Se-based materials |
| title_short | Compositing effects for high thermoelectric performance of Cu2Se-based materials |
| title_sort | compositing effects for high thermoelectric performance of cu2se based materials |
| url | https://doi.org/10.1038/s41467-023-38054-y |
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