An additive approach to low temperature zero pressure sintering of bismuth antimony telluride thermoelectric materials
| Autor: | G. Nunes, Rajesh Tripathi, Glenn C. Catlin, Howard D. Jones, Philip B. Lynch, Devin C. Schmitt |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Bismuth chemistry.chemical_compound Seebeck coefficient Thermoelectric effect Electronic engineering Electrical and Electronic Engineering Physical and Theoretical Chemistry Antimony telluride Renewable Energy Sustainability and the Environment business.industry 021001 nanoscience & nanotechnology Thermoelectric materials 0104 chemical sciences Thermoelectric generator chemistry Optoelectronics 0210 nano-technology business Tellurium Ambient pressure |
| Zdroj: | Journal of Power Sources. 343:316-321 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2016.12.092 |
| Popis: | This paper presents an additive-based approach to the formulation of thermoelectric materials suitable for screen printing. Such printing processes are a likely route to such thermoelectric applications as micro-generators for wireless sensor networks and medical devices, but require the development of materials that can be sintered at ambient pressure and low temperatures. Using a rapid screening process, we identify the eutectic combination of antimony and tellurium as an additive for bismuth-antimony-telluride that enables good thermoelectric performance without a high pressure step. An optimized composite of 15 weight percent Sb 7.5 Te 92.5 in Bi 0.5 Sb 1.5 Te 3 is scaled up and formulated into a screen-printable paste. Samples fabricated from this paste achieve a thermoelectric figure of merit ( ZT) of 0.74 using a maximum processing temperature of 748 K and a total thermal processing budget of 12 K-hours. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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