Characterization of a thermoelectric generator at low temperatures

Sevan Karabetoglu, Altug Sisman*, Z. Fatih Ozturk, Turker Sahin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)


For the low temperature applications of Bi 2Te 3 based thermoelectric power generators (TEGs), determination of low temperature material behaviors is important. In the temperature range of 100-375 K, temperature dependency of Seebeck coefficient and electrical conductivity of a Bi 2Te 3 based TEG are experimentally determined. Furthermore, for a constant temperature difference, the variation of maximum power output with the mean temperature is analytically examined based on the experimentally measured material properties. It is observed that 250 K seems a critical mean operating temperature for the considered Bi 2Te 3 module. Correlations for temperature dependency of material quantities are also given for the temperature region of 100-375 K. The results can be used for the low temperature applications of Bi 2Te 3 based TEGs.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalEnergy Conversion and Management
Publication statusPublished - Oct 2012


This research project has been financially supported by Drotel Telecommunication Inc. Corp., Ericom Telecommunication and Energy Technologies Inc. Corp. and Istanbul Technical University Scientific Research Project Fund. Authors are grateful for these financial supports.

FundersFunder number
Drotel Telecommunication Inc.
Istanbul Teknik Üniversitesi


    • Bi Te
    • Cryogenic characterization
    • Thermoelectric generators
    • Thermoelectric properties


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