Self-sustaining personal all-day thermoregulatory clothing using only sunlight

• 成果类型: Article
• 署名作者: Wang, Ziyuan; Bo, Yiwen; Bai, Peijia; Zhang, Shuchao; Li, Guanghui; Wan, Xiangjian; Liu, Yongsheng; Ma, Rujun; Chen, Yongsheng
• 署名单位: Nankai University; Nankai University; Nankai University; Nankai University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-10010
• DOI: 10.1126/science.adj3654
• 发表日期: 2023-12-15
• 页码: 1291-1296
• 关键词: thermal management; radiation

摘要

The human body must stay within a certain temperature range for comfort and safety. However, challenges for thermoregulatory clothing exist for harsh application scenarios, such as full day/night cycles, frigid polar regions, and space travel. We developed a flexible and sustainable personal thermoregulatory clothing system by integrating a flexible organic photovoltaic (OPV) module to directly acquire energy from sunlight and bidirectional electrocaloric (EC) devices. The flexible OPV-EC thermoregulatory clothing (OETC) can extend the human thermal comfort zone from 22 degrees-28 degrees C to 12.5 degrees-37.6 degrees C with a fast thermoregulation rate. The low energy consumption and high efficiency of the EC device allows for 24 hours of controllable and dual-mode thermoregulation with 12 hours of sunlight energy input. This self-powered wearable thermoregulatory platform has a simple structure, compact design, high efficiency, and strong self-adaptability with sunlight as the sole energy source.