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Flexible screen printed thick film thermoelectric generator with reduced material resistivity

机译:柔性丝网印刷厚膜热电发电机,材料电阻率降低

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摘要

This work presents a flexible thick-film Bismuth Tellurium/Antimony Tellurium (BiTe/SbTe) thermoelectric generator (TEG) with reduced material resistivity fabricated by screen printing technology. Cold isostatic pressing (CIP) was introduced to lower the resistivity of the printed thermoelectric materials. The Seebeck coefficient (?) and the resistivity (?) of printed materials were measured as a function of applied pressure. A prototype TEG with 8 thermocouples was fabricated on flexible polyimide substrate. The dimension of a single printed element was 20 mm × 2 mm × 78.4 ?m. The coiled-up prototype produced a voltage of 36.4 mV and a maximum power of 40.3 nW from a temperature gradient of 20°C.
机译:这项工作提出了一种柔性的厚膜铋碲/锑碲(BiTe / SbTe)热电发生器(TEG),其丝网印刷技术可降低材料的电阻率。引入冷等静压(CIP)以降低印刷热电材料的电阻率。测量印刷材料的塞贝克系数(η)和电阻率(η)作为施加压力的函数。在柔性聚酰亚胺基板上制作了带有8个热电偶的TEG原型。单个印刷元件的尺寸为20mm×2mm×78.4μm。盘绕的原型通过20°C的温度梯度产生36.4 mV的电压和40.3 nW的最大功率。

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