Microchannel-Confined MXene Based Flexible Piezoresistive Multifunctional Micro-Force Sensor

被引：348

作者：

Gao, Yuyu ^{[1
]}

Yan, Cheng ^{[1
]}

Huang, Haichao ^{[1
]}

Yang, Tao ^{[1
]}

Tian, Guo ^{[1
]}

Xiong, Da ^{[1
]}

Chen, Ningjun ^{[1
]}

Chu, Xiang ^{[1
]}

Zhong, Shen ^{[1
]}

Deng, Weili ^{[1
]}

Fang, Yong ^{[2
]}

Yang, Weiqing ^{[3
]}

机构：

[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Technol Mat, Chengdu 610031, Peoples R China

[2] Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Peoples R China

[3] Southwest Jiaotong Univ, State Key Lab Tract Power, Sch Mat Sci & Engn, Key Lab Adv Technol Mat,Minist Educ, Chengdu 610031, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2020年 / 30卷 / 11期

基金：

中国国家自然科学基金;

关键词：

microchannel confined effects; multifunctional devices; MXenes; piezoresistive sensors; HIGH-SENSITIVITY; PRESSURE SENSORS; SKIN;

D O I：

10.1002/adfm.201909603

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Multifunctional micro-force sensing in one device is an urgent need for the higher integration of the smaller flexible electronic device toward wearable health-monitoring equipment, intelligent robotics, and efficient human-machine interface. Herein, a novel microchannel-confined MXene-based flexible piezoresistive sensor is demonstrated to simultaneously achieve multi-types micro-force sensing of pressure, sound, and acceleration. Benefiting from the synergistically confined effect of the fingerprint-microstructured channel and the accordion-microstructured MXene materials, the as-designed sensor remarkably endows a low detection limit of 9 Pa, a high sensitivity of 99.5 kPa(-1), and a fast response time of 4 ms, as well as non-attenuating durability over 10 000 cycles. Moreover, the fabricated sensor is multifunctionally capable of sensing sounds, micromotion, and acceleration in one device. Evidently, such a multifunctional sensing characteristic can highlight the bright prospect of the microchannel-confined MXene-based micro-force sensor for the higher integration of flexible electronics.

引用

页数：8

共 44 条

[1] 2D metal carbides and nitrides (MXenes) for energy storage [J].