A rapid method to extract Seebeck coefficient under a large temperature difference
- Univ. of Houston, TX (United States). Dept. of Physics and The Texas Center for Superconductivity; Univ. of Houston, TX (United States). Materials Science and Engineering Program
- Univ. of South Alabama, Mobile, AL (United States). Dept. of Mechanical Engineering
- Univ. of Houston, TX (United States). Dept. of Physics and The Texas Center for Superconductivity
The Seebeck coefficient is one of the three important properties in thermoelectric materials. Since thermoelectric materials usually work under large temperature difference in real applications, we propose a quasi-steady state method to accurately measure the Seebeck coefficient under large temperature gradient. Compared to other methods, this method is not only highly accurate but also less time consuming. It can measure the Seebeck coefficient in both the temperature heating up and cooling down processes. In this work, a Zintl material (Mg3.15Nb0.05Sb1.5Bi0.49Te0.01) was tested to extract the Seebeck coefficient from room temperature to 573 K. Compared with a commercialized Seebeck coefficient measurement device (ZEM-3), there is ±5% difference between those from ZEM-3 and this method.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE
- Grant/Contract Number:
- SC0001299; FG02-09ER46577
- OSTI ID:
- 1470531
- Alternate ID(s):
- OSTI ID: 1395380
- Journal Information:
- Review of Scientific Instruments, Vol. 88, Issue 9; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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