Journal
NANO TODAY
Volume 45, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.nantod.2022.101526
Keywords
Thermal management textile; Photothermal conversion; Electromagnetic interference shielding; Robust superhydrophobicity; Magnetron sputtering
Categories
Funding
- National Natural Science Foundation of China [52 075 309]
- Youth Innovation Team of Shaanxi Universities [21JP021]
- Science and Technology Department, Shaanxi Province [2021GY-248]
- Taif University, Taif, KSA [TURSP-2020/03]
- JST-ERATO Yamauchi Materials Space-Tectonics Project [JPMJER2003]
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In this study, an all-in-one thermal management textile was developed using a one-step magnetron sputtering process. The textile integrates multiple functions, including passive heating, Joule heating, electromagnetic interference shielding, outstanding photothermal conversion, and robust superhydrophobicity.
A single wearable device that seamlessly integrates all desirable functions is in urgent demand. However, the reported approaches to design such a device can only integrate two or three functions as a compromise owing to the mutual restraint between seemingly unrelated functions. In this study, using a 'one-stone-fivebirds' strategy, an all-in-one thermal management textile containing Ag/Ti-TiO2 multilayer films (only 893 nm in thickness) was produced by a simple one-step magnetron sputtering process. Firstly, the bottom Ag layer acted as a material with low emissivity for passive heating and excellent conductivity for Joule heating (60.2 degrees C at 3 V). Additionally, this layer was capable of electromagnetic interference shielding (31 dB after 5000 stretching cycles). Secondly, a nano-gradient Ti-TiOx wavelength-selective absorber was used to achieve outstanding photothermal conversion (94.1 degrees C under 1 kW/m2 irradiation and 88.1 degrees C after 10 000 stretching cycles). Finally, the outermost TiO2 layer played two roles: as an anti-reflective layer to further improve sunlight absorption and to reduce the surface energy for robust superhydrophobicity. The contact angle of a water drop on the surface of the NSMTs always remained above 150 degrees after various mechanical treatments, such as 10 000 stretching cycles and 2000 tape-peeling cycles. Owing to the overall considerations and synergistic enhancement, all of these functions exceeded or matched those of the stateof-the-art materials in recently reported studies. This study represents a crucial breakthrough for constructing high-performance flexible wearable devices.
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