STRETCHABLE OXYGEN SENSOR BASED ON SELF-HEALING AND SELF-ADHESIVE ORGANOHYDROGELS

被引：0
|
作者：
Liang, Yuning [1 ]
Wu, Zixuan [1 ]
Wei, Yaoming [1 ]
Zhou, Zijing [1 ]
Huang, Wenxi [1 ]
Zhong, Bizhang [1 ]
Ye, Jindong [1 ]
Lin, Yuanqing [1 ]
Li, Zhenyi [1 ]
Ding, Haojun [1 ]
Yang, Xing [1 ]
Tao, Kai [2 ]
Wu, Jin [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou, Guangdong, Peoples R China
[2] Northwestern Polytech Univ, Minist Educ, Key Lab Micro & Nano Syst Aerosp, Xian 710072, Peoples R China
来源：
2021 21ST INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS) | 2021年
基金：
中国国家自然科学基金;
关键词：
oxygen sensors; organohydrogel; stretchable sensors; electrochemical reaction;
D O I：
10.1109/TRANSDUCERS50396.2021.9495559
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A simple solvent replacement strategy is used to replace part of the water molecules with propylene glycol (PG) molecules inside the hydrogels to convert the polyacrylamide-chitosan (PAM-CS) composite hydrogels into PAM-CS-PG organohydrogels. Based on the self-healing and self-adhesive organohydrogels, a stretchable oxygen sensor with a wide working range, high sensitivity (0.167%/ppm), low limit of detection (29 ppm), and excellent linearity is fabricated. The organohydrogel sensor shows unparalleled stretchability (up to 1600% strain) and strong adhesion strength (35N/m) on various substrates. An electrochemical reaction mechanism is proposed to explain the positive current shift of the oxygen sensors. This work provides ideas for the fabrication of more gas sensors using hydrogels.
引用
收藏
页码：156 / 159
页数：4
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