Thermoelectric properties of granular Mg3Sb2 particles
This article presents the results obtained in the study of thermoelectric properties of granulated Mg3Sb2 particles. The results of the study show that the thermoelectric properties of granulated Mg3Sb2 particles mainly depend on the physical processes occurring in the interparticle boundary areas....
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/99/e3sconf_afe23_03013.pdf |
| _version_ | 1797345119039389696 |
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| author | Omonboev Lutfiddin Fazliddin o’gli Tishabayevich Abdugafur Mamadalimov |
| author_facet | Omonboev Lutfiddin Fazliddin o’gli Tishabayevich Abdugafur Mamadalimov |
| author_sort | Omonboev Lutfiddin Fazliddin o’gli |
| collection | DOAJ |
| description | This article presents the results obtained in the study of thermoelectric properties of granulated Mg3Sb2 particles. The results of the study show that the thermoelectric properties of granulated Mg3Sb2 particles mainly depend on the physical processes occurring in the interparticle boundary areas. As the temperature increases, the localized traps in the interparticle boundary areas are ionized, and the capture of charge carriers in them leads to a decrease in electrical conductivity (σ). The Seebeck coefficient (α) increases as the temperature difference occurs due to the potential difference and phonon absorption. Also, impurity thermal-voltaic effects appear with the formation of electron-hole pairs in impurity states with an energy level of Ein in the interparticle boundary regions. As a result, the total λ increases at the same time as the thermal conductivity of the two adjacent areas. The convergence of electrical conductivity and potential difference leads to a relatively stable change of λ. These processes lead to a change in the ZT index from ~0.021 to ~1.3 at T=300-700 K. |
| first_indexed | 2024-03-08T11:12:51Z |
| format | Article |
| id | doaj.art-e3ce60219fb346808ed00199a58c7198 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-08T11:12:51Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-e3ce60219fb346808ed00199a58c71982024-01-26T10:40:49ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014620301310.1051/e3sconf/202346203013e3sconf_afe23_03013Thermoelectric properties of granular Mg3Sb2 particlesOmonboev Lutfiddin Fazliddin o’gli0Tishabayevich Abdugafur Mamadalimov1PhD student Andijan State UniversityHead of the Laboratory of the Research Institute of Semiconductor Physics and Microelectronics at the National University of Uzbekistan named after Mirzo UlugbekThis article presents the results obtained in the study of thermoelectric properties of granulated Mg3Sb2 particles. The results of the study show that the thermoelectric properties of granulated Mg3Sb2 particles mainly depend on the physical processes occurring in the interparticle boundary areas. As the temperature increases, the localized traps in the interparticle boundary areas are ionized, and the capture of charge carriers in them leads to a decrease in electrical conductivity (σ). The Seebeck coefficient (α) increases as the temperature difference occurs due to the potential difference and phonon absorption. Also, impurity thermal-voltaic effects appear with the formation of electron-hole pairs in impurity states with an energy level of Ein in the interparticle boundary regions. As a result, the total λ increases at the same time as the thermal conductivity of the two adjacent areas. The convergence of electrical conductivity and potential difference leads to a relatively stable change of λ. These processes lead to a change in the ZT index from ~0.021 to ~1.3 at T=300-700 K.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/99/e3sconf_afe23_03013.pdf |
| spellingShingle | Omonboev Lutfiddin Fazliddin o’gli Tishabayevich Abdugafur Mamadalimov Thermoelectric properties of granular Mg3Sb2 particles E3S Web of Conferences |
| title | Thermoelectric properties of granular Mg3Sb2 particles |
| title_full | Thermoelectric properties of granular Mg3Sb2 particles |
| title_fullStr | Thermoelectric properties of granular Mg3Sb2 particles |
| title_full_unstemmed | Thermoelectric properties of granular Mg3Sb2 particles |
| title_short | Thermoelectric properties of granular Mg3Sb2 particles |
| title_sort | thermoelectric properties of granular mg3sb2 particles |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/99/e3sconf_afe23_03013.pdf |
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