Interfacial Enhanced 1D–2D Composite toward Mechanically Robust Strain Sensors

Shang，Kedong1; Yang，Tingting1; Guo，Chuanfei2; Pu，Xiaobo1; Zhang，Yong1; Lu，Xulei1; He，Changliu1; Zhou，Jian1; Wu，Lei1; Yu，Bingjun1; Jiang，Liang1; Qian，Linmao1

2022

10.1002/admi.202201201

Advanced Materials Interfaces   Impact Factor & Quartile

2196-7350

Flexible sensors with the ability to precisely detect the full range of tiny strain (less than 0.1%), small strain (within 1%), and large strain (≈50%) are in significant demand to satisfy the requirements for electronic skin applications. More importantly, the sensor performance is required to be accurate and reliable when operating in some unconstrained environments, such as excessive extension, high bending, torsion, and scratching impact. However, it remains challenging to meet all these requirements simultaneously in a single strain sensor. Herein, an ultrathin composite film composed of reduced oxide (rGO) and carbon tube (CNT) is prepared, and then transferred onto a modified elastomer polydimethylsiloxane surface that forms strong hydrogen bond interaction with the film. The as-fabricated sensor achieves wide range and high sensitivity (gauge factor (GF) ≈ 105, 160, and 310 in the strain regions of 0–25%, 25–40%, and 40–50%, respectively). More importantly, the proposed strain sensor performs mechanical robustness, low hysteresis, scratch resistance due to the effective improvement of interfacial slipping and delamination. The sensor can be used to monitor human physiological information, including pulse waveforms in a variety of wrist postures and acoustic vibration signal (≈7 kHz).

low hysteresis mechanically robust scratch resistance strain sensor strong interface

SCI ; EI

English

Others

WOS:000851887500001

20223712718798

Composite films ; Hysteresis ; Silicones

Physical Chemistry:801.4 ; Organic Polymers:815.1.1 ; Systems Science:961

2-s2.0-85137464300

Scopus

1.Tribology Research Institute,State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu,Sichuan,610031,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Shang，Kedong,Yang，Tingting,Guo，Chuanfei,等. Interfacial Enhanced 1D–2D Composite toward Mechanically Robust Strain Sensors[J]. Advanced Materials Interfaces,2022.

Shang，Kedong.,Yang，Tingting.,Guo，Chuanfei.,Pu，Xiaobo.,Zhang，Yong.,...&Qian，Linmao.(2022).Interfacial Enhanced 1D–2D Composite toward Mechanically Robust Strain Sensors.Advanced Materials Interfaces.

Shang，Kedong,et al."Interfacial Enhanced 1D–2D Composite toward Mechanically Robust Strain Sensors".Advanced Materials Interfaces (2022).