摘要(英) |
Nowadays, the topics of renewable energy generation have attracted much attention. Among them, the conversion from thermal to electrical energy is one important research topic. The thermoelectric effect can be applied to waste heat recovery, thermoelectric cooling, and power generation, etc. The thermoelectric modules could be maintenance-free, non-toxic, and safe. These properties make the thermoelectric modules potential for the body heat energy scavenging and battery recharging.
This thesis focuses on the materials processing, property measurement and module fabrication of sub-millimeter-thick P- and N-type thermoelectric materials. The Si nanopowder was doped into P- and N-type, then mixed with magnesium, tin, silver nanopowder and cold-pressed into 300-μm-thick flakes. The samples were sintered at different temperatures and time to obtain the optimum annealing parameter. By improving the structure and processes, the thermoelectric module was fabricated and measured from room temperature to 200 oC.
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