U.S. Department of EnergyOffice of Scientific and Technical Information
Studies on the Bi2Te3–Bi2Se3–Bi2S3 system for mid-temperature thermoelectric energy conversion
Abstract
Bismuth telluride (Bi2Te3) and its alloys have been widely investigated as thermoelectric materials for cooling applications at around room temperature. We report here a systematic study on many compounds in the Bi2Te3–Bi2Se3–Bi2S3 system. All the samples were fabricated by high energy ball milling followed by hot pressing. Among the investigated compounds, Bi2Te2S1 shows a peak ZT ~0.8 at 300 °C and Bi2Se1S2 ~0.8 at 500 °C. The results show that these compounds can be used for mid-temperature power generation applications. The leg efficiency of thermoelectric conversion for segmented elements based on these n-type materials could potentially reach 12.5% with a cold side at 25 °C and a hot side at 500 °C if appropriate p-type legs are paired, which could compete well with the state-of-the-art n-type materials within the same temperature range, including lead tellurides, lead selenides, lead sulfides, filled-skutterudites, and half Heuslers.
- Authors:
-
- Boston College, Chestnut Hill, MA (United States). Dept. of Physics
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering
- Publication Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1381942
- Grant/Contract Number:
- SC0001299; FG02-09ER46577
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Energy & Environmental Science
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 2; Journal ID: ISSN 1754-5692
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION
Citation Formats
Liu, Weishu, Lukas, Kevin C., McEnaney, Kenneth, Lee, Sangyeop, Zhang, Qian, Opeil, Cyril P., Chen, Gang, and Ren, Zhifeng. Studies on the Bi2Te3–Bi2Se3–Bi2S3 system for mid-temperature thermoelectric energy conversion. United States: N. p., 2012.
Web. doi:10.1039/C2EE23549H.
Liu, Weishu, Lukas, Kevin C., McEnaney, Kenneth, Lee, Sangyeop, Zhang, Qian, Opeil, Cyril P., Chen, Gang, & Ren, Zhifeng. Studies on the Bi2Te3–Bi2Se3–Bi2S3 system for mid-temperature thermoelectric energy conversion. United States. https://doi.org/10.1039/C2EE23549H
Liu, Weishu, Lukas, Kevin C., McEnaney, Kenneth, Lee, Sangyeop, Zhang, Qian, Opeil, Cyril P., Chen, Gang, and Ren, Zhifeng. 2012.
"Studies on the Bi2Te3–Bi2Se3–Bi2S3 system for mid-temperature thermoelectric energy conversion". United States. https://doi.org/10.1039/C2EE23549H. https://www.osti.gov/servlets/purl/1381942.
@article{osti_1381942,
title = {Studies on the Bi2Te3–Bi2Se3–Bi2S3 system for mid-temperature thermoelectric energy conversion},
author = {Liu, Weishu and Lukas, Kevin C. and McEnaney, Kenneth and Lee, Sangyeop and Zhang, Qian and Opeil, Cyril P. and Chen, Gang and Ren, Zhifeng},
abstractNote = {Bismuth telluride (Bi2Te3) and its alloys have been widely investigated as thermoelectric materials for cooling applications at around room temperature. We report here a systematic study on many compounds in the Bi2Te3–Bi2Se3–Bi2S3 system. All the samples were fabricated by high energy ball milling followed by hot pressing. Among the investigated compounds, Bi2Te2S1 shows a peak ZT ~0.8 at 300 °C and Bi2Se1S2 ~0.8 at 500 °C. The results show that these compounds can be used for mid-temperature power generation applications. The leg efficiency of thermoelectric conversion for segmented elements based on these n-type materials could potentially reach 12.5% with a cold side at 25 °C and a hot side at 500 °C if appropriate p-type legs are paired, which could compete well with the state-of-the-art n-type materials within the same temperature range, including lead tellurides, lead selenides, lead sulfides, filled-skutterudites, and half Heuslers.},
doi = {10.1039/C2EE23549H},
url = {https://www.osti.gov/biblio/1381942},
journal = {Energy & Environmental Science},
issn = {1754-5692},
number = 2,
volume = 6,
place = {United States},
year = {Thu Nov 22 00:00:00 EST 2012},
month = {Thu Nov 22 00:00:00 EST 2012}
}
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