Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition
This study aimed to enhance the thermoelectric properties of bismuth telluride by adding Bi4O4SeCl2 (BOSC). Commercial N-type bismuth telluride was mixed with BOSC powder in varying concentrations. As the BOSC content increased, the carrier concentration also rose due to chlorine atoms acting as don...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379724007411 |
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| author | Nattharika Theekhasuk Nuttakrit Somdock Athorn Voraud Pichet Limsuwan Rachsak Sakdanuphab Aparporn Sakulkalavek |
| author_facet | Nattharika Theekhasuk Nuttakrit Somdock Athorn Voraud Pichet Limsuwan Rachsak Sakdanuphab Aparporn Sakulkalavek |
| author_sort | Nattharika Theekhasuk |
| collection | DOAJ |
| description | This study aimed to enhance the thermoelectric properties of bismuth telluride by adding Bi4O4SeCl2 (BOSC). Commercial N-type bismuth telluride was mixed with BOSC powder in varying concentrations. As the BOSC content increased, the carrier concentration also rose due to chlorine atoms acting as donor impurities. Despite this increase, the power factor values of the samples with BOSC additives did not significantly differ from those of the bare bismuth telluride sample. However, the total thermal conductivity decreased significantly with the addition of BOSC, reaching a minimum value of 0.54 W·m–1·K–1 at 150 °C for the sample with 1 wt% BOSC. Notably, the ZT value for the sample with 1 wt% BOSC was about 0.86, which is four times higher than that of the bare bismuth telluride sample. Our findings demonstrate superior thermoelectric performance, indicating a more efficient modification of thermoelectric properties through the addition of BOSC to the bismuth telluride matrix. |
| format | Article |
| id | doaj-art-b358eab0c5a1471fab9c0901ec1ebdb5 |
| institution | Kabale University |
| issn | 2211-3797 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj-art-b358eab0c5a1471fab9c0901ec1ebdb52024-12-19T10:53:46ZengElsevierResults in Physics2211-37972024-12-0167108056Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound additionNattharika Theekhasuk0Nuttakrit Somdock1Athorn Voraud2Pichet Limsuwan3Rachsak Sakdanuphab4Aparporn Sakulkalavek5School of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Rd. Ladkrabang, Bangkok 10520, ThailandSchool of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Rd. Ladkrabang, Bangkok 10520, ThailandDepartment of Physics, Faculty of Science, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, ThailandSchool of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Rd. Ladkrabang, Bangkok 10520, ThailandCollege of Advanced Manufacturing Innovation, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Rd. Ladkrabang, Bangkok 10520, Thailand; Electronic and Optoelectronic Device Research Unit, School of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand; Corresponding author.School of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Rd. Ladkrabang, Bangkok 10520, Thailand; Electronic and Optoelectronic Device Research Unit, School of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, ThailandThis study aimed to enhance the thermoelectric properties of bismuth telluride by adding Bi4O4SeCl2 (BOSC). Commercial N-type bismuth telluride was mixed with BOSC powder in varying concentrations. As the BOSC content increased, the carrier concentration also rose due to chlorine atoms acting as donor impurities. Despite this increase, the power factor values of the samples with BOSC additives did not significantly differ from those of the bare bismuth telluride sample. However, the total thermal conductivity decreased significantly with the addition of BOSC, reaching a minimum value of 0.54 W·m–1·K–1 at 150 °C for the sample with 1 wt% BOSC. Notably, the ZT value for the sample with 1 wt% BOSC was about 0.86, which is four times higher than that of the bare bismuth telluride sample. Our findings demonstrate superior thermoelectric performance, indicating a more efficient modification of thermoelectric properties through the addition of BOSC to the bismuth telluride matrix.http://www.sciencedirect.com/science/article/pii/S2211379724007411Bismuth TellurideThermoelectricUltra-Low Thermal Conductivity |
| spellingShingle | Nattharika Theekhasuk Nuttakrit Somdock Athorn Voraud Pichet Limsuwan Rachsak Sakdanuphab Aparporn Sakulkalavek Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition Results in Physics Bismuth Telluride Thermoelectric Ultra-Low Thermal Conductivity |
| title | Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition |
| title_full | Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition |
| title_fullStr | Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition |
| title_full_unstemmed | Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition |
| title_short | Enhanced thermoelectric properties of bismuth telluride via Ultra-Low thermal conductivity BOSC compound addition |
| title_sort | enhanced thermoelectric properties of bismuth telluride via ultra low thermal conductivity bosc compound addition |
| topic | Bismuth Telluride Thermoelectric Ultra-Low Thermal Conductivity |
| url | http://www.sciencedirect.com/science/article/pii/S2211379724007411 |
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