High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution
Bi2Te3-based compounds are a well-known class of outstanding thermoelectric materials. β-As2Te3, another member of this family, exhibits promising thermoelectric properties around 400 K when appropriately doped. Herein, we investigate the high-temperature thermoelectric properties of the β-As2−xBixT...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2016-10-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.4950947 |
| _version_ | 1818557275537670144 |
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| author | J.-B. Vaney G. Delaizir A. Piarristeguy J. Monnier E. Alleno E. B. Lopes A. P. Gonçalves A. Pradel A. Dauscher C. Candolfi B. Lenoir |
| author_facet | J.-B. Vaney G. Delaizir A. Piarristeguy J. Monnier E. Alleno E. B. Lopes A. P. Gonçalves A. Pradel A. Dauscher C. Candolfi B. Lenoir |
| author_sort | J.-B. Vaney |
| collection | DOAJ |
| description | Bi2Te3-based compounds are a well-known class of outstanding thermoelectric materials. β-As2Te3, another member of this family, exhibits promising thermoelectric properties around 400 K when appropriately doped. Herein, we investigate the high-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution. Powder X-ray diffraction and scanning electron microscopy experiments showed that a solid solution only exists up to x = 0.035. We found that substituting Bi for As has a beneficial influence on the thermopower, which, combined with extremely low thermal conductivity values, results in a maximum ZT value of 0.7 at 423 K for x = 0.017 perpendicular to the pressing direction. |
| first_indexed | 2024-12-13T23:57:40Z |
| format | Article |
| id | doaj.art-780ba4b22fc346ecbf67b22b74125a86 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-13T23:57:40Z |
| publishDate | 2016-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-780ba4b22fc346ecbf67b22b74125a862022-12-21T23:26:28ZengAIP Publishing LLCAPL Materials2166-532X2016-10-01410104901104901-610.1063/1.4950947002695APMHigh-temperature thermoelectric properties of the β-As2−xBixTe3 solid solutionJ.-B. Vaney0G. Delaizir1A. Piarristeguy2J. Monnier3E. Alleno4E. B. Lopes5A. P. Gonçalves6A. Pradel7A. Dauscher8C. Candolfi9B. Lenoir10Institut Jean Lamour, UMR 7198 CNRS–Université de Lorraine, Nancy, FranceScience des Procédés Céramiques et de Traitements de Surface (SPCTS), UMR CNRS 7315-Université de Limoges, Limoges, FranceInstitut Charles Gerhardt (ICG), UMR 5253 CNRS-Université de Montpellier, Montpellier, FranceInstitut de Chimie et des Matériaux Paris Est (ICMPE), UMR 7182 CNRS-Université Paris-Est Créteil, Thiais, FranceInstitut de Chimie et des Matériaux Paris Est (ICMPE), UMR 7182 CNRS-Université Paris-Est Créteil, Thiais, FranceC2TN, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, PortugalC2TN, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, PortugalInstitut Charles Gerhardt (ICG), UMR 5253 CNRS-Université de Montpellier, Montpellier, FranceInstitut Jean Lamour, UMR 7198 CNRS–Université de Lorraine, Nancy, FranceInstitut Jean Lamour, UMR 7198 CNRS–Université de Lorraine, Nancy, FranceInstitut Jean Lamour, UMR 7198 CNRS–Université de Lorraine, Nancy, FranceBi2Te3-based compounds are a well-known class of outstanding thermoelectric materials. β-As2Te3, another member of this family, exhibits promising thermoelectric properties around 400 K when appropriately doped. Herein, we investigate the high-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution. Powder X-ray diffraction and scanning electron microscopy experiments showed that a solid solution only exists up to x = 0.035. We found that substituting Bi for As has a beneficial influence on the thermopower, which, combined with extremely low thermal conductivity values, results in a maximum ZT value of 0.7 at 423 K for x = 0.017 perpendicular to the pressing direction.http://dx.doi.org/10.1063/1.4950947 |
| spellingShingle | J.-B. Vaney G. Delaizir A. Piarristeguy J. Monnier E. Alleno E. B. Lopes A. P. Gonçalves A. Pradel A. Dauscher C. Candolfi B. Lenoir High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution APL Materials |
| title | High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution |
| title_full | High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution |
| title_fullStr | High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution |
| title_full_unstemmed | High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution |
| title_short | High-temperature thermoelectric properties of the β-As2−xBixTe3 solid solution |
| title_sort | high temperature thermoelectric properties of the β as2 xbixte3 solid solution |
| url | http://dx.doi.org/10.1063/1.4950947 |
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