Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China.
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China.
Nano Lett. 2022 May 25;22(10):4131-4136. doi: 10.1021/acs.nanolett.2c00872. Epub 2022 May 10.
Wearable thermoelectric generators as renewable energy conversion technologies have witnessed rapid development in the past decade. Herein, we design a nanowire (NW) film wavy structure which possesses an excellent temperature gradient ratio for stretchable thermoelectric generators. Taking advantage of the photothermal effect of Te NWs as the hot side and p-n NWs heterofilms (n-type AgTe and p-type CuTe NWs) as thermoelectric materials, a considerable output voltage can be achieved under light irradiation. Besides the electricity output, the wearable device can also make our skin warm and comfortable in cold weather. Meanwhile, we combine thermoelectric generators with passive radiative cooling technology to reduce insolation of the human body and improve the performance of the device under intense solar irradiation in hot weather. Interestingly, it can also offer continuous green energy to realize various signal perceptions, suggesting a robust strategy for electricity output and self-powered wearable electronics.
在过去的十年中，可穿戴式热电发生器作为可再生能源转换技术得到了快速发展。在此，我们设计了一种纳米线（NW）薄膜波浪结构，它具有优异的可拉伸热电发生器的温度梯度比。利用 Te NWs 的光热效应作为热侧，p-n NWs 异质薄膜（n 型 AgTe 和 p 型 CuTe NWs）作为热电材料，在光照射下可以获得相当大的输出电压。除了电能输出，可穿戴设备还可以使我们的皮肤在寒冷的天气中感到温暖和舒适。同时，我们将热电发生器与被动辐射冷却技术相结合，以减少人体的太阳辐射，并提高设备在炎热天气下强太阳辐射下的性能。有趣的是，它还可以提供持续的绿色能源，以实现各种信号感知，为电能输出和自供电可穿戴电子设备提供了一种强大的策略。
