Luo Hao, Zhu Yining, Xu Ziquan, Hong Yu, Ghosh Pintu, Kaur Sandeep, Wu Mingbang, Yang Chenying, Qiu Min, Li Qiang
State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China.
School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou 310018, China.
Nano Lett. 2021 May 12;21(9):3879-3886. doi: 10.1021/acs.nanolett.1c00400. Epub 2021 Apr 23.
Outdoor personal thermal comfort is of substantial significance to ameliorate the health conditions of pedestrian and outdoor laborer. However, the uncontrollable sunlight, substantial radiative loss, and intense temperature fluctuations in the outdoor environment present majestic challenges to outdoor personal thermal management. Here, we report an eco-friendly passive nanostructured textile which harvests energy from the sun and the outer space for optional localized heating and cooling. Compared to conventional heating/cooling textiles like black/white cotton, its heating/cooling mode enables a skin simulator temperature increase/decrease of 8.1 °C/6 °C, respectively, under sunlight exposure. Meanwhile, the temperature gradient created between the textile and human skin allows a continuous electricity generation with thermoelectric modules. Owing to the exceptional outdoor thermoregulation ability, this Janus textile is promising to help maintain a comfortable microclimate for individuals in outdoor environment and provide a platform for pervasive power generation.
户外个人热舒适性对于改善行人及户外劳动者的健康状况具有重大意义。然而，户外环境中无法控制的阳光、大量的辐射损失以及剧烈的温度波动给户外个人热管理带来了巨大挑战。在此，我们报道了一种环保型被动纳米结构纺织品，它能从太阳和外层空间收集能量，用于选择性的局部加热和冷却。与传统的加热/冷却纺织品（如黑色/白色棉布）相比，其加热/冷却模式在阳光照射下能使皮肤模拟器温度分别升高/降低8.1℃/6℃。同时，纺织品与人体皮肤之间产生的温度梯度可通过热电模块实现持续发电。由于具有出色的户外温度调节能力，这种双面纺织品有望帮助在户外环境中的个人维持舒适的微气候，并为普及发电提供一个平台。
