PDF(Pubmed)
Abstract：
With the rapid proliferation of portable and wearable electronics, energy autonomy through efficient energy harvesting has become paramount. Thermoelectric generators (TEGs) stand out as promising candidates due to their silent operation, high reliability, and maintenance-free nature. This paper presents the design, fabrication, and analysis of a micro-scale TEG for powering such devices. A planar configuration was employed for its inherent miniaturization advantages. Finite element analysis using ANSYS reveals that a double-layer device under a 50 K temperature gradient generates an impressive open-circuit voltage of 1417 mV and a power output of 2.4 μW, significantly exceeding its single-layer counterpart (226 mV, 0.12 μW). Validation against the analytical model results yields errors within 2.44% and 2.03% for voltage and power, respectively. Furthermore, a single-layer prototype fabricated using paper shadow masks and sputtering deposition exhibits a voltage of 131 mV for a 50 K temperature difference, thus confirming the feasibility of the proposed design. This work establishes a foundation for developing highly efficient micro-TEGs for powering next-generation portable and wearable electronics.
摘要：
随着便携式和可穿戴电子产品的迅速普及，通过有效的能源收集实现能源自主性已变得至关重要。热电发电机（TEG）由于其无声运行而成为有前途的候选人，高可靠性,免维护性质。本文介绍了设计,fabrication,以及用于为此类设备供电的微型TEG的分析。由于其固有的小型化优势，采用了平面配置。使用ANSYS进行的有限元分析显示，在50K温度梯度下，双层设备会产生令人印象深刻的1417mV开路电压和2.4μW的功率输出，显著超过其单层对应物(226mV，0.12μW）。根据分析模型结果进行验证，对于电压和功率，误差在2.44%和2.03%以内，分别。此外，使用纸荫罩和溅射沉积制造的单层原型在50K的温差下表现出131mV的电压，从而证实了所提出设计的可行性。这项工作为开发高效的微型TEG奠定了基础，为下一代便携式和可穿戴电子产品供电。
