Work

Anisotropic Thermoelectric Generator Made from Single Crystal Bi Microwire

Year: 2015

Type: conference-paper

Abstract: Currently, for thermoelectric conversion of heat most widely used is the approach based on the Seebeck and Peltier effects created at the interface of two materials with different values S of the Seebeck coefficient. Another type of thermoelectric converter is the anisotropic thermoelement (AT) using anisotropy of thermoelectric power. AT has some advantages: - the transverse thermopower, unlike a conventional thermocouple, is proportional to the temperature gradient (T1- T2)/h instead of the temperature difference T1-T2; - Voltage V is proportional to the length l of AT. To increase the AT output voltage we need either increase the length l of AT or decrease its thickness h. According to our experimental data, to obtain a thermoelectric voltage of 1 V at a transverse temperature gradient of 5 K, the microwire with a diameter of 2 μ m and a length of 8 m must be used. In our experimental sample the long wire in glass coating was wound into a flat spiral.

Source: World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany

DOI: 10.1007/978-981-287-736-9_28

Authors: L. A. Konopko, A. A. Nikolaeva, T. E. Huber, A. K. Tsurkan

Institutions: Academy of Sciences of Moldova, International Laboratory of High Magnetic Fields and Low Temperatures, Howard University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

Funders: National Science Foundation, Boeing, Science and Technology Center in Ukraine