Stretchable Nanolayered Thermoelectric Energy Harvester on Complex and Dynamic Surfaces
Stretchable Nanolayered Thermoelectric Energy Harvester on Complex and Dynamic Surfaces
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DOI：
10.1021/acs.nanolett.0c01225
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发表时间：
2020-06-10
期刊：
影响因子：
10.8
通讯作者：
Chen, Yong
中科院分区：
文献类型：
--
作者：
Yang, Yang;Hu, Hongjie;Chen, Yong
热电发电机（TEG）为从废热中收集能量提供了独特的解决方案，为绿色能源提供了潜在的解决方案。然而，传统的刚性和柔性TEG不能在复杂和动态的表面上工作。在这里，我们报告了一种可拉伸的TEG（S-TEG）（整个设备的拉伸性超过50%），它在几何形状上适用于热源的各种复杂和动态表面。S-TEG由热压纳米层p-（Sb 2 Te 3）和n-（Bi 2 Te 3）型热电偶阵列组成，并利用波浪形蛇形互连来集成所有单元。10 × 10阵列的内阻为22欧姆，在Δ T = 19 K时，在可展和不可展表面上的输出功率均接近0.15 mW/cm（2），与现有的S-TEG相比有很大的改善。从人体皮肤的动态表面收集S-TEG的能量为用于健康监测的可穿戴设备提供了潜在的能量解决方案。
Thermoelectric generators (TEGs) provide a unique solution for energy harvesting from waste heat, presenting a potential solution for green energy. However, traditional rigid and flexible TEGs cannot work on complex and dynamic surfaces. Here, we report a stretchable TEG (S-TEG) (over 50% stretchability of the entire device) that is geometrically suitable for various complex and dynamic surfaces of heat sources. The S-TEG consists of hot-pressed nanolayered p-(Sb2Te3) and n-(Bi2Te3)-type thermoelectric couple arrays and exploits the wavy serpentine interconnects to integrate all units. The internal resistance of a 10 X 10 array is 22 ohm, and the output power is similar to 0.15 mW/cm(2) at Delta T = 19 K on both developable and nondevelopable surfaces, which are much improved compared with those of existing S-TEGs. The energy harvesting of S-TEG from the dynamic surfaces of the human skin offers a potential energy solution for the wearable devices for health monitoring.