Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors
We theoretically investigate the interplay between the confinement length L and the thermal de Broglie wavelength Λ to optimize the thermoelectric power factor of semiconducting materials. An analytical formula for the power factor is derived based on the one-band model assuming nondegenerate semico...
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| Format: | Article |
| Language: | English |
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American Physical Society
2017
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| Online Access: | http://hdl.handle.net/1721.1/110510 https://orcid.org/0000-0001-8492-2261 |
| _version_ | 1826206704224698368 |
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| author | Hung, Nguyen T. Hasdeo, Eddwi H. Nugraha, Ahmad R. T. Saito, Riichiro Dresselhaus, Mildred |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Hung, Nguyen T. Hasdeo, Eddwi H. Nugraha, Ahmad R. T. Saito, Riichiro Dresselhaus, Mildred |
| author_sort | Hung, Nguyen T. |
| collection | MIT |
| description | We theoretically investigate the interplay between the confinement length L and the thermal de Broglie wavelength Λ to optimize the thermoelectric power factor of semiconducting materials. An analytical formula for the power factor is derived based on the one-band model assuming nondegenerate semiconductors to describe quantum effects on the power factor of the low-dimensional semiconductors. The power factor is enhanced for one- and two-dimensional semiconductors when L is smaller than Λ of the semiconductors. In this case, the low-dimensional semiconductors having L smaller than their Λ will give a better thermoelectric performance compared to their bulk counterpart. On the other hand, when L is larger than Λ, bulk semiconductors may give a higher power factor compared to the lower dimensional ones. |
| first_indexed | 2024-09-23T13:37:15Z |
| format | Article |
| id | mit-1721.1/110510 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:37:15Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1105102022-09-28T15:06:55Z Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors Hung, Nguyen T. Hasdeo, Eddwi H. Nugraha, Ahmad R. T. Saito, Riichiro Dresselhaus, Mildred Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Physics Dresselhaus, Mildred We theoretically investigate the interplay between the confinement length L and the thermal de Broglie wavelength Λ to optimize the thermoelectric power factor of semiconducting materials. An analytical formula for the power factor is derived based on the one-band model assuming nondegenerate semiconductors to describe quantum effects on the power factor of the low-dimensional semiconductors. The power factor is enhanced for one- and two-dimensional semiconductors when L is smaller than Λ of the semiconductors. In this case, the low-dimensional semiconductors having L smaller than their Λ will give a better thermoelectric performance compared to their bulk counterpart. On the other hand, when L is larger than Λ, bulk semiconductors may give a higher power factor compared to the lower dimensional ones. National Science Foundation (U.S.) (DMR-1507806) 2017-07-06T19:15:19Z 2017-07-06T19:15:19Z 2016-07 2016-05 2016-07-15T22:00:03Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/110510 Hung, Nguyen T.; Hasdeo, Eddwi H.; Nugraha, Ahmad R. T.; Dresselhaus, Mildred S. and Saito, Riichiro. "Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors." Physical Review Letters 117 036602 (July 2016): 1-5 © 2016 American Physical Society https://orcid.org/0000-0001-8492-2261 en http://dx.doi.org/10.1103/PhysRevLett.117.036602 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Hung, Nguyen T. Hasdeo, Eddwi H. Nugraha, Ahmad R. T. Saito, Riichiro Dresselhaus, Mildred Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors |
| title | Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors |
| title_full | Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors |
| title_fullStr | Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors |
| title_full_unstemmed | Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors |
| title_short | Quantum Effects in the Thermoelectric Power Factor of Low-Dimensional Semiconductors |
| title_sort | quantum effects in the thermoelectric power factor of low dimensional semiconductors |
| url | http://hdl.handle.net/1721.1/110510 https://orcid.org/0000-0001-8492-2261 |
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