Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites
Abstract Chalcostibite (CuSbS2) is composed of earth-abundant elements and has a proper band gap (E g = 1.05 eV) as a thermoelectric (TE) material. Herein, we report the TE properties in the CuSbS2based composites with a mole ratio of (1−x)CuSbS2−xCu18S (x = 0, 0.1, 0.2, 0.3), which were prepared by...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2019-06-01
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| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40145-018-0306-0 |
| _version_ | 1797714662670729216 |
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| author | Chunmei Tang Doudou Liang Hezhang Li Kun Luo Boping Zhang |
| author_facet | Chunmei Tang Doudou Liang Hezhang Li Kun Luo Boping Zhang |
| author_sort | Chunmei Tang |
| collection | DOAJ |
| description | Abstract Chalcostibite (CuSbS2) is composed of earth-abundant elements and has a proper band gap (E g = 1.05 eV) as a thermoelectric (TE) material. Herein, we report the TE properties in the CuSbS2based composites with a mole ratio of (1−x)CuSbS2−xCu18S (x = 0, 0.1, 0.2, 0.3), which were prepared by mechanical alloying (MA) combined with spark plasma sintering (SPS). X-ray diffraction (XRD) and back-scattered electron image (BSE) results indicate that a single phase of CuSbS2 is synthesized at x = 0 and the samples consist of CuSbS2, Cu3SbS4, and Cu12Sb4S13 at 0.1 ⩽ x ⩽ 0.3. The correlation between the phase structure, microstructure, and TE transport properties of the bulk samples is established. The electrical conductivity increases from 0.14 to 50.66 S·cm−1 at 723 K and at 0 ⩽ x ⩽ 0.03, while the Seebeck coefficient holds an appropriate value of 190.51 µV·K−1. The highest ZT value of 0.17 is obtained at 723 K and at x = 0.3 owing to the combination of a high PF 183 µW·m−1·K−2 and a low κ 0.8 W·m−1·K−1. |
| first_indexed | 2024-03-12T07:55:16Z |
| format | Article |
| id | doaj.art-cea78e7bebb844a3bd2b070d113621e8 |
| institution | Directory Open Access Journal |
| issn | 2226-4108 2227-8508 |
| language | English |
| last_indexed | 2024-03-12T07:55:16Z |
| publishDate | 2019-06-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj.art-cea78e7bebb844a3bd2b070d113621e82023-09-02T20:19:07ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082019-06-018220921710.1007/s40145-018-0306-0Preparation and thermoelectric properties of Cu1.8S/CuSbS2 compositesChunmei Tang0Doudou Liang1Hezhang Li2Kun Luo3Boping Zhang4Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, University of Science and Technology BeijingBeijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, University of Science and Technology BeijingBeijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, University of Science and Technology BeijingBeijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, University of Science and Technology BeijingBeijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, University of Science and Technology BeijingAbstract Chalcostibite (CuSbS2) is composed of earth-abundant elements and has a proper band gap (E g = 1.05 eV) as a thermoelectric (TE) material. Herein, we report the TE properties in the CuSbS2based composites with a mole ratio of (1−x)CuSbS2−xCu18S (x = 0, 0.1, 0.2, 0.3), which were prepared by mechanical alloying (MA) combined with spark plasma sintering (SPS). X-ray diffraction (XRD) and back-scattered electron image (BSE) results indicate that a single phase of CuSbS2 is synthesized at x = 0 and the samples consist of CuSbS2, Cu3SbS4, and Cu12Sb4S13 at 0.1 ⩽ x ⩽ 0.3. The correlation between the phase structure, microstructure, and TE transport properties of the bulk samples is established. The electrical conductivity increases from 0.14 to 50.66 S·cm−1 at 723 K and at 0 ⩽ x ⩽ 0.03, while the Seebeck coefficient holds an appropriate value of 190.51 µV·K−1. The highest ZT value of 0.17 is obtained at 723 K and at x = 0.3 owing to the combination of a high PF 183 µW·m−1·K−2 and a low κ 0.8 W·m−1·K−1.http://link.springer.com/article/10.1007/s40145-018-0306-0CuSbS2phase structureZTthermoelectric |
| spellingShingle | Chunmei Tang Doudou Liang Hezhang Li Kun Luo Boping Zhang Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites Journal of Advanced Ceramics CuSbS2 phase structure ZT thermoelectric |
| title | Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites |
| title_full | Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites |
| title_fullStr | Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites |
| title_full_unstemmed | Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites |
| title_short | Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites |
| title_sort | preparation and thermoelectric properties of cu1 8s cusbs2 composites |
| topic | CuSbS2 phase structure ZT thermoelectric |
| url | http://link.springer.com/article/10.1007/s40145-018-0306-0 |
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