熱電材料可在全球永續能源解決方案中扮演重要的角色。由於熱電致冷器的固態設備沒有移動部件，故其安靜、可靠，並有可擴展性，這些優點都刺激了對熱電材料的興趣。微電子元件可在非常小的區域內產生巨大熱通量，也被稱為熱點。目前冷卻技術正迅速的達到極限，因此高效率熱電致冷器在散熱管理中將發揮重要的作用。熱電冷卻器的性能被材料之熱電特性所限制，一個好的熱電材料需要有高的熱電優值。基本上，冷卻功率由怕爾帖效應提昇，由熱傳導與焦耳熱降低。優先選擇高賽貝克係數、低導熱係數、高導電率的材料。本研究參考各項文獻，訂出三維模型，藉由ANSYS模擬，分析並討論熱電特性對熱電致冷器性能係數之影響。研究發現溫差與電阻率上升、賽貝克係數減少會導致性能係數降低。

Thermoelectric materials could play an important role in a global sustainable energy solution. As thermoelectric coolers are solid-state devices with no moving parts, they are silent, reliable and scalable. These advantages have stimulated an interest in thermoelectric materials. Microelectronic devices can generate huge heat fluxes in very small areas (also called hot-spot). The current cooling technologies are fast reaching their limits. So an efficient cooler would play a crucial role in the thermal management. It is well known that the efficiency of thermoelectric coolers is limited by the thermoelectric properties of materials. A good thermoelectric material must have a high figure of merit (ZT). Basically, the cooling power arises from the Peltier effect and is degraded by the conduction heat transfer and Joule heating. Materials with a large Seebeck coefficient, a small thermal conductivity, and a large electric conductivity are thus preferred. This study refers to each reference documents and set up three-dimensional model, and utilizing ANSYS simulation. Then analysis and discusses the effect of thermoelectric properties on the cooling performance of thermoelectric cooler. From our results, the cooling performance decreases as the temperature difference increase, electrical resistivity increase and Seebeck coefficient decrease.

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