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

Author:

Wang Ziyuan1ORCID,Bo Yiwen2ORCID,Bai Peijia2ORCID,Zhang Shuchao1ORCID,Li Guanghui1ORCID,Wan Xiangjian1ORCID,Liu Yongsheng1ORCID,Ma Rujun2ORCID,Chen Yongsheng1ORCID

Affiliation:

1. State Key Laboratory and Institute of Elemento-Organic Chemistry, The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin 300071, China.

2. School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China.

Abstract

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°–28°C to 12.5°–37.6°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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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