A high sensitivity single-walled carbon-nanotube-array-based strain sensor for weighing

Yang, Xing; Zhou, Zhaoying; Zheng, Fuzhong; Zhang, M.; Zhang, J.; Yao, Yagang

doi:10.1109/sensor.2009.5285798

Cited by 12 publications

(9 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, low-strain gauges can be implemented for the structural health-monitoring, [ 123,124 ] mass measurement, [ 125,126 ] pressure sensing, [ 67,81 ] etc. On the other hand, highly stretchable and sensitive strain sensors could be utilized as body-integrated electronic devices.…”

Section: Applicationsmentioning

confidence: 99%

Stretchable, Skin‐Mountable, and Wearable Strain Sensors and Their Potential Applications: A Review

Amjadi

Kyung

Park

et al. 2016

Adv Funct Materials

2,638

2,129

View full text Add to dashboard Cite

wileyonlinelibrary.comSkin-mountable and wearable sensors can be attached onto the clothing or even directly mounted on the human skin for the real-time monitoring of human activities. [ 10 ] Besides their high effi ciency, they must fulfi ll several minimum requirements including high stretchability, fl exibility, durability, low power consumption, biocompatibility, and lightweight. These demands become even more severe for epidermal electronic devices where mechanical compliance like human skin and high stretchability ( ε > 100% where ε is the strain) are required. [ 11,12 ] Recently, several types of skin-mountable and wearable sensors have been proposed by using nanomaterials coupled with fl exible and stretchable polymers. Indeed, nanomaterials are utilized as functional sensing elements owing to their outstanding electrical, mechanical, optical, and chemical properties while polymers are employed as fl exible support materials thanks to their fl exibility, stretchability, humanfriendliness, and durability. [ 13 ] Examples of those innovative sensors include strain sensors, [ 10,[12][13][14] pressure sensors, [ 5,[15][16][17] electronic skins (e-skins), [ 3,[16][17][18][19][20] and temperature sensors. [ 2,21,22 ] Particularly, various skin-mountable and wearable strain sensors have been developed because of their broad applications in personalized heath-monitoring, human motion detection, human-machine interfaces, and soft robotics. [ 10,12,[23][24][25][26][27][28][29][30][31] This paper aims to survey fabrication processes, working mechanisms, strain sensing performances, and applications of stretchable strain sensors. The article is organized as follows: fi rst, common operation mechanisms of stretchable strain sensors are described. Here, we summarize novel functional nanomaterials and techniques for the fabrication of stretchable strain sensors in details. Second, mechanisms involved in the strain-responsive behavior of resistive-type and capacitive-type sensors are explained. We show that the infl uence of traditional mechanisms like geometrical changes and piezoresistivity of materials on the strain sensing performance of fl exible strain sensors are very small whereas mechanisms such as disconnection between sensing elements, crack propagation in thin fi lms, and tunneling effect can potentially be employed for highly stretchable and sensitive strain sensing. Third, we emphasize the performance parameters of stretchable strain sensors in terms of stretchability, sensitivity, linearity, hysteresis behavior, response time, overshooting, and durability. We demonstrate

show abstract

Section: Applicationsmentioning

confidence: 99%

Stretchable, Skin‐Mountable, and Wearable Strain Sensors and Their Potential Applications: A Review

Amjadi

Kyung

Park

et al. 2016

Adv Funct Materials

2,638

2,129

View full text Add to dashboard Cite

show abstract

“…Even though conventional strain sensors require low fabrication cost, they typically have poor stretchability and sensitivity (maximum strain of 5% and GF ∼ 2). − Recently, there have been numerous efforts to develop flexible, stretchable, and sensitive strain sensors because of their various potential applications such as for rehabilitation and personal health monitoring, − structural health monitoring, , sports performance monitoring, , human motion capturing for entertainment systems ( e.g. , motion capture for games and animation), − and mass measurement. , In particular, highly stretchable and sensitive strain sensors are required in biomechanics, physiology, and kinesiology applications where very large strain should be accommodated by the sensors …”

mentioning

confidence: 99%

“…Despite numerous efforts to develop high-performance strain sensors based on carbon nanomaterials with desirable properties ( i.e. , high GFs and linearity coupled with a high stretchability), − ,,,,− most previously reported strain sensors have only demonstrated high sensitivity coupled with relatively low stretchability and vice versa .…”

mentioning

confidence: 99%

Highly Stretchable and Sensitive Strain Sensor Based on Silver Nanowire–Elastomer Nanocomposite

et al. 2014

View full text Add to dashboard Cite

The demand for flexible and wearable electronic devices is increasing due to their facile interaction with human body. Flexible, stretchable and wearable sensors can be easily mounted on clothing or directly attached onto the body. Especially, highly stretchable and sensitive strain sensors are needed for the human motion detection. Here, we report highly flexible, stretchable and sensitive strain sensors based on the nanocomposite of silver nanowire (AgNW) network and PDMS elastomer in the form of the sandwich structure (i.e., AgNW thin film embedded between two layers of PDMS). The AgNW network-elastomer nanocomposite based strain sensors show strong piezoresistivity with tunable gauge factors in the ranges of 2 to 14 and a high stretchability up to 70%. We demonstrate the applicability of our high performance strain sensors by fabricating a glove integrated with five strain sensors for the motion detection of fingers and control of an avatar in the virtual environment.

show abstract

“…This high current causes Joule heating of the low resistance CNTs. The Joule heating can be used to eliminate these CNTs from the sensor through a technique known as electrical breakdown [13]. This technique takes advantage of the increased reactivity of CNTs at high temperatures to create a rapid oxidation of the low resistance CNTs and eliminate them CNTs from the sample.…”

Section: Electrical Breakdown Of Cnts In Sensormentioning

confidence: 99%

Design and fabrication of single chirality carbon nanotube-based sensors

Cullinan

Culpepper

2011

2011 11th IEEE International Conference on Nanotechnology

View full text Add to dashboard Cite

This paper presents a method to fabricate high purity, single chirality CNT-based sensor systems. Ultracentrifugation is initially used to create an 85% pure (6,5) CNT sample. Electrical breakdown is then used to remove the low resistance and low gauge factor CNTs from the sensor. Overall, this increases the gauge factor of the CNT-based piezoresistive sensor from -22.7 to 34.1. This result indicates that the majority of the impurities in the sensor are removed during the fabrication process.

show abstract

A high sensitivity single-walled carbon-nanotube-array-based strain sensor for weighing

Cited by 12 publications

References 5 publications

Stretchable, Skin‐Mountable, and Wearable Strain Sensors and Their Potential Applications: A Review

Stretchable, Skin‐Mountable, and Wearable Strain Sensors and Their Potential Applications: A Review

Highly Stretchable and Sensitive Strain Sensor Based on Silver Nanowire–Elastomer Nanocomposite

Design and fabrication of single chirality carbon nanotube-based sensors

Contact Info

Product

Resources

About