Highly reproducible printable graphite strain gauges for flexible devices

Bessonov, A. A.; Kirikova, M. N.; Haque, Samiul; Gartseev, Ilya; Bailey, Marc J. A.

doi:10.1016/j.sna.2013.11.034

Cited by 95 publications

(62 citation statements)

References 20 publications

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“…[1][2][3][4] Although conventional strain sensors based on thin metal-wires and semiconductors are well developed, their fragile and rigid nature impose limitation as flexible/wearable devices. [1,5] Many attempts have been made to enhance the flexibility of strain sensor with stretchable materials. Most widely employed strategy in preparation of flexible strain sensor is to use resistive-type sensor due to their relatively simple structure and fabrication process, as well as low energy consumption in operation.…”

Section: Introductionmentioning

confidence: 99%

Highly Flexible Strain Sensor from Tissue Paper for Wearable Electronics

Samad

Taha

et al. 2016

ACS Sustainable Chem. Eng.

219

151

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We introduce a simple method to fabricate a highly flexible resistive-type strain sensor composed of carbon paper (CP) and polydimethylsiloxane (PDMS) elastomer. The key resistance sensitive material of the sensor, carbon paper, is prepared from tissue paper by a simple high-temperature pyrolysis process. At the same time, the as-fabricated CP/PDMS strain senor is highly sensitive to applied strain with a gauge factor (GF) of 25.3, almost 10 times higher than that of conventional metallic strain gauge. Furthermore, the response of CP/PDMS strain sensor under cyclic tensile strain with a peak strain of 3% was also investigated, which exhibits fast and steady response with excellent durability within the frequency range of 0.01-10Hz. Finally, we demonstrate the successful utilization of the CP/PDMS strain sensor as wearable electronics in breath monitoring and robot controlling. The eminent performance, low material cost, and facile fabrication process make the CP/PDMS strain sensor exceptionally promising in flexible, stretchable and wearable electronics.

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Section: Introductionmentioning

confidence: 99%

Highly Flexible Strain Sensor from Tissue Paper for Wearable Electronics

Samad

Taha

et al. 2016

ACS Sustainable Chem. Eng.

219

151

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“…In recent years, sensors printed on polymer substrates represent an increasing area of research and development due to the growing demand for biosensors [1], artificial skin [2], chemical sensors [3], force [4] and strain sensors [5][6][7][8][9]. In particular, resistive strain sensors on polymeric substrates are employed, in general, for the measurement of forces [6], movements [7] and displacements [8].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, resistive strain sensors on polymeric substrates are employed, in general, for the measurement of forces [6], movements [7] and displacements [8]. Therefore, they are used in many different fields, and not least, in the biomedical field [9].…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of strain sensors based on PEDOT:PSS and silver nanoparticles inks deposited on polymer substrate by inkjet printing

Borghetti

Serpelloni

Sardini

et al. 2016

Sensors and Actuators A: Physical

102

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a b s t r a c tRecently, inkjet printing technology has received growing attention as a method to produce low-cost large-area electronics, sensors, and antennas on polymer substrates. This technology relies on printing techniques to deposit electrically functional materials onto polymer substrates to fabricate electronic components or sensing elements. In this paper, we applied an inkjet printed technology for the development and characterization of films on a polymer substrate aiming at giving design considerations for the optimization of strain sensors or printed electronics obtained by inkjet printing. Two inks were tested over a polyimide substrate, a water-based conductive polymer, PEDOT:PSS, and a silver nanoparticles ink. Their sensing capabilities were investigated under tensile conditions and various strain histories (strain ramp; cyclic loading-unloading tests; application of constant strain over prolonged time) aiming at highlighting the correlation between electrical response, applied strain, time and mechanical histories. Furthermore, the mechanical viscoelastic response of the substrate was investigated under similar strain histories interpreting the results at the light of the substrate deformational characteristics and evaluating its influence.

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“…Similar phenomena have been reported for graphite-based strain sensors. 8 When the thin graphite wires were elongated, the graphite flakes separated easily, resulting in a decrease in the number of electron pathways, and, thus, the observed significant increase in resistance. However, the number of contacts between the graphite flakes was increased by the application of compressive strains, and the conductivity of the thin graphite wires was thus increased.…”

Section: Resultsmentioning

confidence: 99%

“…Carbon-based materials are good potential candidates for strain sensors, because of their high flexibility and sensitivity. [1][2][3][4][5][6][7][8][9][10] Chemical vapor deposition has been used to synthesize graphene [1][2][3][4] and carbon nanotube [5][6][7] films. However, these methods require complicated multistep procedures, and/or expensive facilities that result in the waste of material, and high costs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of strain sensors based on thin graphite wires

Saito

Shimoda

Shirakashi

2015

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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In this study, the electrical properties of thin graphite wires were investigated for strain sensors. The thin graphite wires were simply and easily fabricated from pyrolytic graphite sheet, which can be formed by firing a polymer film (such as a polyimide film) at high temperatures. The resistance of the thin graphite wires increased under increasing tensile bending strains and decreased under increasing compressive bending strains. Notably, the sensitivity of the sensors increased when the thickness of the thin graphite wires was reduced. This property was investigated via modeling of the strain-induced changes in the overlap area and conduction pathways of the graphite flakes. Multiple-cycle tests were carried out to evaluate the long-term stability of the thin graphite wires; specifically, the electrical response was monitored under repeated cycling, for approximately 1000 cycles. The thin graphite wires were assembled on ultrathin gloves to fabricate data gloves that could detect finger motions. The results of this study indicate that the thin graphite wires that were simply and easily fabricated from pyrolytic graphite sheet have great potential for a wide range of applications, including human motion detectors.

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Highly reproducible printable graphite strain gauges for flexible devices

Cited by 95 publications

References 20 publications

Highly Flexible Strain Sensor from Tissue Paper for Wearable Electronics

Highly Flexible Strain Sensor from Tissue Paper for Wearable Electronics

Mechanical behavior of strain sensors based on PEDOT:PSS and silver nanoparticles inks deposited on polymer substrate by inkjet printing

Investigation of strain sensors based on thin graphite wires

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