TY - JOUR
T1 - Improving the comprehensive performance of strain flexible sensors by electron irradiation and temperature synergy
AU - Yue, Xiaoqing
AU - Gao, Jiuwei
AU - Yang, Jianqun
AU - Liu, Zhongli
AU - Wang, Xuewen
AU - Dong, Lei
AU - Guan, Enhao
AU - Hou, Shuhao
AU - Liu, Fengkai
AU - Li, Xingji
N1 - Publisher Copyright:
© 2022 The Royal Society of Chemistry.
PY - 2022/7/12
Y1 - 2022/7/12
N2 - With the continuous development of science and technology, people have an urgent demand for wearable flexible sensors. Therefore, how to obtain high performance wearable sensors at low cost has become an urgent problem to be solved. In this work, a method for surface modification of sensors based on electron irradiation is proposed. Hydroxylated multi-walled carbon nanotube (hydroxylated MWCNT)/ecoflex composite flexible sensors were irradiated under the synergistic effect of 1 MeV electron irradiation and temperature to improve their performance. It is found that under the synergistic effect of low temperature, more defects and active functional groups were introduced into the irradiated sensor, and thus its sensitivity was higher. At the maximum strain, the gauge factor (GF) of the irradiated sensor was 3.7 times that of the original. And when the irradiation fluence was 1 × 1014 e cm−2, the response time and recovery time of the sensor were reduced by 57.1% and 75.0%, respectively. This synergistic modification method of electron irradiation and low temperature provides a new idea for obtaining wearable sensors with high performance.
AB - With the continuous development of science and technology, people have an urgent demand for wearable flexible sensors. Therefore, how to obtain high performance wearable sensors at low cost has become an urgent problem to be solved. In this work, a method for surface modification of sensors based on electron irradiation is proposed. Hydroxylated multi-walled carbon nanotube (hydroxylated MWCNT)/ecoflex composite flexible sensors were irradiated under the synergistic effect of 1 MeV electron irradiation and temperature to improve their performance. It is found that under the synergistic effect of low temperature, more defects and active functional groups were introduced into the irradiated sensor, and thus its sensitivity was higher. At the maximum strain, the gauge factor (GF) of the irradiated sensor was 3.7 times that of the original. And when the irradiation fluence was 1 × 1014 e cm−2, the response time and recovery time of the sensor were reduced by 57.1% and 75.0%, respectively. This synergistic modification method of electron irradiation and low temperature provides a new idea for obtaining wearable sensors with high performance.
UR - http://www.scopus.com/inward/record.url?scp=85135131674&partnerID=8YFLogxK
U2 - 10.1039/d2tc02051c
DO - 10.1039/d2tc02051c
M3 - 文章
AN - SCOPUS:85135131674
SN - 2050-7534
VL - 10
SP - 10805
EP - 10814
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 30
ER -