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http://hdl.handle.net/10397/92418
Title: | Wearable self-powered human motion sensors based on highly stretchable quasi-solid state hydrogel | Authors: | Chen, J Zhang, L Tu, Y Zhang, Q Peng, F Zeng, W Zhang, M Tao, X |
Issue Date: | Oct-2021 | Source: | Nano energy, Oct. 2021, v. 88, 106272 | Abstract: | Self-powered flexible sensors are highly favored and considered auspicious for wearable electronics due to their preferable flexibility and facilitation to integrate with various apparel products. As a wearable product, the sensors can be designed by a self-powered strategy powered with harvested low-grade heat from human body to meet the daily long-term use. The flexible thermoelectric generator (f-TEG) can harvest the human body heat to generate a thermovoltage driving the sensor directly. Herewith we report a wearable self-powered human motion sensor made from highly stretchable quasi-solid state hydrogel, which shows 2800% elongation at break and good strain sensitivity (GF=4, when the strain is 200%) and detects the movement and sound of human body. Further, the hydrogel based sensor can harvest the human body heat and generate a thermovoltage to drive the sensor directly, which exhibits an impressive gigantic Seebeck coefficient of approximate 11.5 mV K−1 at ambient temperature. Combining the merits of flexibility, environment friendly, sensitivity and thermoelectric performance at room temperature range together, we believe that the hydrogel based sensor will offer amble opportunities to numerous self-powered sensor applications like wearable electronics, sports, health and wellbeing. | Keywords: | Body heat Flexible sensors Quasi-solid state hydrogel Self-powered Thermoelectric generator |
Publisher: | Elsevier | Journal: | Nano energy | ISSN: | 2211-2855 | EISSN: | 2211-3282 | DOI: | 10.1016/j.nanoen.2021.106272 | Rights: | © 2021 Elsevier Ltd. All rights reserved. © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Chen, J., Zhang, L., Tu, Y., Zhang, Q., Peng, F., Zeng, W., . . . Tao, X. (2021). Wearable self-powered human motion sensors based on highly stretchable quasi-solid state hydrogel. Nano Energy, 88, 106272 is available at https://dx.doi.org/10.1016/j.nanoen.2021.106272. |
Appears in Collections: | Journal/Magazine Article |
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Chen_Wearable_Self-Powered_Human.pdf | Pre-Published version | 1.78 MB | Adobe PDF | View/Open |
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