The evolution of wearable technology with energy harvesting has gathered significant interest in recent years. A wearable thermoelectric device (WTED) harvests energy by tapping the electricity between the human body and ambient temperature. However, the performances of WTED modules can be improved by different p-n structural engineering such as with and without metallic layer insert, inverted L shape, p-p-n, and p-n-n module are designed and analyzed in this study. Each p-n WTED comprises a single pair of the p-n type consisting of bismuth telluride, each with a dimension of 1.4 mm thick connected in series. Open-circuit voltage and the low internal resistance of their geometry were measured for each class using a computational method. For the first time, inverted L shape and metallic insert of h_i/h = 0.1 mm p-n junction WTED can generate a minimum to the maximum output power of 0.23 to13.10 mW for a temperature difference of 10 to 80 K, which is higher than the conventional WTED along with metal contact at the hot side. Furthermore, by considering the enhanced output performance, WTED can able to power wearable electronic applications.

近年来，具有能量收集功能的可穿戴技术的发展引起了人们的极大兴趣。可穿戴热电设备 (WTED) 通过利用人体和环境温度之间的电力来收集能量。然而，WTED 模块的性能可以通过不同的 pn 结构工程来提高，例如有和没有金属层插入、倒 L 形、ppn 和 pnn 模块在本研究中被设计和分析。每个 pn WTED 包括一对由碲化铋组成的 pn 型，每个串联连接的尺寸为 1.4 毫米厚。使用计算方法测量每个类别的开路电压和其几何结构的低内阻。第一次，倒L形和金属嵌件h _i/h = 0.1 mm pn 结 WTED 可以在 10 至 80 K 的温差下产生最小至最大 0.23 至 13.10 mW 的输出功率，这高于传统 WTED 以及热侧的金属接触。此外，通过考虑增强的输出性能，WTED 可以为可穿戴电子应用提供动力。