Highly Sensitive Flexible Pressure Sensor Based on Silver Nanowires-Embedded Polydimethylsiloxane Electrode with Microarray Structure

2017 ◽  
Vol 9 (31) ◽  
pp. 26314-26324 ◽  
Author(s):  
Xingtian Shuai ◽  
Pengli Zhu ◽  
Wenjin Zeng ◽  
Yougen Hu ◽  
Xianwen Liang ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Silver Nanowires ◽  
Highly Sensitive ◽  
Flexible Pressure Sensor

A highly sensitive and flexible pressure sensor with electrodes and elastomeric interlayer containing silver nanowires

Nanoscale ◽  
2015 ◽  
Vol 7 (7) ◽  
pp. 2926-2932 ◽  
Author(s):  
Jun Wang ◽  
Jinting Jiu ◽  
Masaya Nogi ◽  
Tohru Sugahara ◽  
Shijo Nagao ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Silver Nanowires ◽  
Highly Sensitive ◽  
Flexible Pressure Sensor

scholarly journals Highly Sensitive, Breathable, and Flexible Pressure Sensor Based on Electrospun Membrane with Assistance of AgNW/TPU as Composite Dielectric Layer

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2459 ◽  
Author(s):  
Jie Wang ◽  
Yaoyuan Lou ◽  
Bin Wang ◽  
Qing Sun ◽  
Mingwei Zhou ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Dielectric Layer ◽  
Silver Nanowires ◽  
Synergistic Effects ◽  
Pressure Sensors ◽  
Mechanical Deformation ◽  
Wearable Devices ◽  
Electrospun Membrane ◽  
Highly Sensitive ◽  
Flexible Pressure Sensor

Pressure sensors have been widely used in electronic wearable devices and medical devices to detect tiny physical movements and mechanical deformation. However, it remains a challenge to fabricate desirable, comfortable wearing, and highly sensitive as well as fast responsive sensors to capture human body physiological signs. Here, a new capacitive flexible pressure sensor that is likely to solve this problem was constructed using thermoplastic polyurethane elastomer rubber (TPU) electrospinning nanofiber membranes as a stretchable substrate with the incorporation of silver nanowires (AgNWs) to build a composite dielectric layer. In addition, carbon nanotubes (CNTs) were painted on the TPU membranes as flexible electrodes by screen printing to maintain the flexibility and breathability of the sensors. The flexible pressure sensor could detect tiny body signs; fairly small physical presses and mechanical deformation based on the variation in capacitance due to the synergistic effects of microstructure and easily altered composite permittivity of AgNW/TPU composite dielectric layers. The resultant sensors exhibited high sensitivity (7.24 kPa−1 within the range of 9.0 × 10−3 ~ 0.98 kPa), low detection limit (9.24 Pa), and remarkable breathability as well as fast responsiveness (<55 ms). Moreover, both continuously pressing/releasing cycle over 1000 s and bending over 1000 times did not impair the sensitivity, stability, and durability of this flexible pressure sensor. This proposed strategy combining the elastomer nanofiber membrane and AgNW dopant demonstrates a cost-effective and scalable fabrication of capacitive pressure sensors as a promising application in electronic skins and wearable devices.

Flexible Pressure Sensor Based on Photo Paper-Molded Micro-Structural AgNWs/PDMS Electrode

2015 ◽  
Vol 748 ◽  
pp. 1-4 ◽  
Author(s):  
Li Xin Mo ◽  
Yu Qun Hou ◽  
Qing Bin Zhai ◽  
Wen Guan Zhang ◽  
Lu Hai Li
Keyword(s):  
Pressure Sensor ◽  
Silver Nanowires ◽  
Low Cost ◽  
Flexible Substrate ◽  
High Sensitivity ◽  
Low Energy ◽  
Capacitive Pressure Sensor ◽  
Micro Structure ◽  
Energy Consuming ◽  
Flexible Pressure Sensor

The novel flexible pressure sensor with skin-like stretchability and sensibility has attracted tremendous attention in academic and industrial world in recent years. And it also has demonstrated great potential in the applications of electronic skin and wearable devices. It is significant and challenging to develop a highly sensitive flexible pressure sensor with a simple, low energy consuming and low cost method. In this paper, the silver nanowires (AgNWs) as electrode material were synthesized by polyol process. The polydimethylsiloxane (PDMS) was chosen as a flexible substrate and polyimide (PI) film as dielectric layer. The AgNWs based electrode was prepared in two methods. One is coating the AgNWs on photographic paper followed by in situ PDMS curing. Another one is suction filtration of the AgNWs suspension followed by glass slide transfer and PDMS curing. Then the capacitive pressure sensor was packaged in a sandwich structure with two face to face electrodes and a PI film in the middle. The sensitivity of the sensor as well as the micro-structure of the electrodes was compared and studied. The results indicate that the roughness of the electrode based on AgNWs/PDMS micro-structure plays an important role in the sensitivity of sensor. The as-prepared flexible pressure sensor demonstrates high sensitivity of 0.65kPa-1. In addition, the fabrication method is simple, low energy consuming and low cost, which has great potential in the detection of pulse, heart rate, sound vibration and other tiny pressure.

Highly Sensitive Flexible Pressure Sensor by the Integration of Microstructured PDMS Film With a-IGZO TFTs

2018 ◽  
Vol 39 (7) ◽  
pp. 1073-1076 ◽  
Author(s):  
Chen Xin ◽  
Longlong Chen ◽  
Tongkuai Li ◽  
Zhihan Zhang ◽  
Tingting Zhao ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Pdms Film ◽  
Highly Sensitive ◽  
Flexible Pressure Sensor

A Highly Sensitive and Broad-Range Pressure Sensor Based on Polyurethane Mesodome Arrays Embedded with Silver Nanowires

2020 ◽  
Vol 12 (17) ◽  
pp. 19988-19999 ◽  
Author(s):  
Guan-Jun Zhu ◽  
Peng-Gang Ren ◽  
Jin Wang ◽  
Qian Duan ◽  
Fang Ren ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Silver Nanowires ◽  
Highly Sensitive
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