Thermoelectric energy conversion
Thermoelectrics – Seebeck -effect – Thermophysical properties – Polycrystalline silicon – V-VI -semiconductors
Competence
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Temperature gradients can be converted into electrical energy using the thermoelectric effect, also known as the Seebeck effect or thermopower. For this purpose, we investigate thermophysical properties of established conducting materials used in the semiconductur industry such as doped polycristalline silicon. Furthermore, we study the properties of thin films made of V-VI semiconductors for thermoelectric applications. The thermophysical properties of the materials are characterized using robust membrane test structures. To support this experimental approach, finite element modeling of the temperature distribution in thin membranes is applied to facilitate the accurate extraction of the material parameters. |
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Fields of application
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Thermoelectric power supply of microsystems
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Thermal microdevices based on thermoelectric effects
Team
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Dipl.-Ing. Dominik Moser, Ph.D. student
Projects
Current
Selected publications
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O. Paul, P. Ruther, L. Plattner, H. Baltes
A Thermal von der Pauw Test Structure
2000 Ieee T Semiconduct M, volume: 13, issue: 2, pages: 159 - 166 -
D. Moser, A. Steffen and O. Paul
Microstructure for the determination of the Seebeck coefficients of doped polysilicon thin films
2011 9th European Conference on Thermoelectrics, Thessaloniki/Greece -
D. Moser, D. Ilkaya, D. Kopp and O. Paul
Determination of the Thermoelectric Figure of Merit of Doped Polysilicon Thin Films by Micromachined Test Structures
Proc. IEEE Sensors Conf, in press
Equipment
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Cryostat setup (80-380K)
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Thermal evaporation setup
Contact
Dominik Moser
Email: moserd@imtek.de
Tel.:+49 (0) 761 203-7196