University of Twente Student Theses


Model for electronic transport properties of thermoelectric semiconductor materials

Witte, Aswin (2015) Model for electronic transport properties of thermoelectric semiconductor materials.

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Abstract:In view of global energy and environmental issues, the necessity to utilize our energy resources more effi�ciently becomes relevant. Since most energy is still being discharged into the environment as waste heat, signficant amounts of renewable energy remains unused. Thermoelectric power generation systems offer a feasible method to convert available heat energy directly into electrical energy, irrespective of source size. However, implementation of present-day semiconductor materials into practical thermoelectric ap- plications has been hampered due to toxic and/or scarce elements and poor chemical stability at high temperatures. The use of silicide compounds as promising thermo- electric materials has enormous potential to overcome the above-mentioned problems, if their thermal conductivity can be reduced. In this report we formulate a model with which the thermal and electrical conductivity of such materials can be predicted. We also show some �first results obtained with this approach, which holds a promise toward application in more detailed design of new materials for energy.
Item Type:Essay (Bachelor)
Faculty:TNW: Science and Technology
Subject:33 physics
Programme:Applied Physics BSc (56962)
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