TY - JOUR
T1 - Wearable self-powered human motion sensors based on highly stretchable quasi-solid state hydrogel
AU - Chen, Jianhao
AU - Zhang, Lei
AU - Tu, Yingyi
AU - Zhang, Qiao
AU - Peng, Feng
AU - Zeng, Wei
AU - Zhang, Mingqiu
AU - Tao, Xiaoming
N1 - Funding Information:
Mingqiu Zhang has over 30 years of systematic experience in polymers, polymer blends and polymer composites. He serves as a member of the Asian-Australasian Association for Composite Materials (AACM) Council and the standing council of Chinese Materials Research Society. In 1997, he received the prestigious fellowship from the Natural Science Foundation of China for Outstanding Young Scientists; and in 2005, the Li Ka Shing Foundation and the Ministry of Education of China selected him as a Cheung Kong Scholar. In addition, Professor Zhang is on the editorial board of eight scientific journals and holds twenty-eight patents.
Funding Information:
The work has been partially supported by National Natural Science Foundation of China (Grant No. 52073066 , 21673080 ) and the GDAS Project of Science and Technology Development , China (Grant No. 2020GDASYL-20200102028 ).
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/10
Y1 - 2021/10
N2 - 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.
AB - 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.
KW - Body heat
KW - Flexible sensors
KW - Quasi-solid state hydrogel
KW - Self-powered
KW - Thermoelectric generator
UR - http://www.scopus.com/inward/record.url?scp=85109171555&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2021.106272
DO - 10.1016/j.nanoen.2021.106272
M3 - Journal article
AN - SCOPUS:85109171555
SN - 2211-2855
VL - 88
JO - Nano Energy
JF - Nano Energy
M1 - 106272
ER -