Journal
CHEMICAL ENGINEERING JOURNAL
Volume 423, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.130200
Keywords
Smart electronic textiles; Self-powered haptic sensing; Superhydrophobicity; Triboelectric nanogenerators; Wearable human-machine interfaces
Categories
Funding
- Youth Innovation Team of Shaanxi Universities
- Shaanxi Provincial Science and Technology Department [2019JM-371]
- Outstanding Youth Science Fund of Xi'an University of Science and Technology [2019YQ2-09]
- Huyang Scholar Program of Xi'an University of Science and Technology
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A humidity-resistant and stretchable single-electrode t-TENG (PFL@WFCF-TENG) has been designed with high output performance and strong humidity resistance, making it suitable for applications in intelligent alarming, haptic sensing, and energy harvesting.
Textile-based triboelectric nanogenerators (t-TENGs) have attracted extensive attention in wearable power source and movement monitoring. However, the electrical output performance and environmental adaptability of t-TENGs in single-electrode mode are still unsatisfactory, which significantly limits their applications. This limitation is especially more pronounced in humid environments. In the present study, a humidity-resistant and stretchable single-electrode t-TENG (abbreviated as PFL@WFCF-TENG) consisting of the porous flexible layer (PFL) and waterproof flexible conductive fabric (WFCF) has been designed to improve the output performance. Considering the three-dimensional structure and excellent superhydrophobicity of PFL and superior conductivity of WFCF, the resultant PFL@WFCF-TENG (2 x 4 cm(2) area) has high outputs (similar to 135 V, similar to 7.5 mu A, 26 mu C/m(2) , 631.5 mW/m(2)) and favorable humidity-resistant (80% RH). Based on these excellent features, the proposed PFL@WFCF-TENG is expected to be applied for intelligent alarming, haptic sensing, and energy harvesting. Moreover, combined with the microelectronic module, a portable and wearable self-powered haptic controller based on the PFL@WFCF-TENG has been designed for various human-machine interface (HMI) scenarios, such as controlling of the lamp, electronic badge, computer application, and humidifier. The PFL@WFCF-TENG proposed in this study not only provides a feasible solution for developing wearable electronic devices with high electrical output even in high-humidity environments but also shows promising applications in a variety of areas, including wearable power supply, portable computer peripherals, intelligent robots and security systems.
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