Abstract—

The temperature dependences of the thermoelectric properties of Ge₂Sb₂Te₅ (p-type) and Bi₂Te_2.8Se_0.2 (n-type) thin films obtained by magnetron and vacuum thermal evaporation, respectively, are under investigation. The effect of crystallization on the Seebeck coefficient of Ge₂Sb₂Te₅ thin films is established. The temperature dependences of the power factors of the investigated thin films are determined. Film thermoelements based on Ge₂Sb₂Te₅ and Bi₂Te_2.8Se_0.2 materials have sufficiently high thermoelectric properties and can be used for manufacturing flexible film thermoelectric generators (TEGs). Computer simulation of the characteristics of a flexible film TEG using the proposed multi-physics model of a flexible film TEG is carried out. The characteristics of the TEG are determined at various ambient temperatures and various electrical loads, which make it possible to optimize the geometric parameters of thermoelements. The optimal operating temperatures of TEGs for wearable electronics are determined.

中文翻译：

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薄膜和柔性热电器件的有希望的发展

摘要——

正在研究分别通过磁控管和真空热蒸发获得的 Ge ₂ Sb ₂ Te ₅（p型）和 Bi ₂ Te _2.8 Se _0.2（n型）薄膜的热电特性的温度依赖性。建立了结晶对Ge ₂ Sb ₂ Te ₅薄膜的塞贝克系数的影响。确定了所研究薄膜的功率因数的温度依赖性。基于 Ge ₂ Sb ₂ Te ₅和 Bi ₂ Te 的薄膜热电偶_2.8 Se _0.2材料具有足够高的热电性能，可用于制造柔性薄膜热电发电机（TEG）。使用提出的柔性薄膜 TEG 的多物理模型对柔性薄膜 TEG 的特性进行计算机模拟。TEG 的特性是在各种环境温度和各种电气负载下确定的，这使得优化热电偶的几何参数成为可能。确定了可穿戴电子设备 TEG 的最佳工作温度。