Ink-jet printed stretchable strain sensor based on graphene/ZnO composite on micro-random ridged PDMS substrate

Hassan, Gul; Bae, Jinho; Hassan, Azman; Ali, Shawkat; Lee, Chong Hyun; Choi, Yo-han

doi:10.1016/j.compositesa.2018.01.031

Cited by 59 publications

(40 citation statements)

References 31 publications

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“…In addition, their scalable production makes for an attractive choice for practical implementation [21]. Recently, researchers have developed several porous materials as templates to generate 3D graphene porous structures, such as polymer sponges (including polyurethane (PU) and polyvinyl chloride (PVC)) [73][74][75][76][77][78], various fabrics [79][80][81], cellulose paper [82], multilayer silk [83], all kinds of metal foams [84][85][86], and others [87][88][89].…”

Section: Graphene Tactile Sensors Using 3d Porous Structuresmentioning

confidence: 99%

Graphene Nanostructure-Based Tactile Sensors for Electronic Skin Applications

et al. 2019

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HIGHLIGHTS• Tremendous progress has been advanced by research into graphene and its derivatives with great benefits toward low-cost, portable, and real-time tactile sensors/electronic skin.• The review presented herein direct future efforts aimed at high-quality graphene-based tactile sensors and their implications for the wider scientific community.• The paper also are informative regarding some basic and crucial issues regarding graphene and its derivatives, such as charge-transport principles, doping/trapping behaviors, correlations between structure/morphology and properties/functions.ABSTRACT Skin is the largest organ of the human body and can perceive and respond to complex environmental stimulations. Recently, the development of electronic skin (E-skin) for the mimicry of the human sensory system has drawn great attention due to its potential applications in wearable human health monitoring and care systems, advanced robotics, artificial intelligence, and human-of graphene materials; (2) state-of-the-art protocols recently developed for high-performance tactile sensing, including representative examples; and (3) perspectives and current challenges for graphene-based tactile sensors in E-skin applications. A summary of these cutting-edge developments intends to provide readers with a deep understanding of the future design of high-quality tactile sensing devices and paves a path for their future commercial applications in the field of E-skin.

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Section: Graphene Tactile Sensors Using 3d Porous Structuresmentioning

confidence: 99%

Graphene Nanostructure-Based Tactile Sensors for Electronic Skin Applications

et al. 2019

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“…The wrinkled aluminium foil substrate was prepared by squeezing and unfolding the 60 mm × 60 mm × 10 µm aluminium foils. This methodology can create random micro ridges on the aluminium foil, which is finally suppressed by using a soft hammer 51 as shown in Fig. S1 a of supplementary information.…”

Section: Methodsmentioning

confidence: 99%

“…The cured polyurethane was cut into different substrate sizes to use for the sensor. The prepared polyurethane substrate with the random micro ridges has several advantages as it ensures the stickiness of the active film and also helps in scattering the applied strain 51 .…”

Section: Methodsmentioning

confidence: 99%

Inkjet printed self-healable strain sensor based on graphene and magnetic iron oxide nano-composite on engineered polyurethane substrate

Hassan

Khan

Bae

et al. 2020

Sci Rep

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In recent years, self-healing property has getting tremendous attention in the future wearable electronic. This paper proposes a novel cut-able and highly stretchable strain sensor utilizing a self-healing function from magnetic force of magnetic iron oxide and graphene nano-composite on an engineered self-healable polyurethane substrate through commercialized inkjet printer DMP-3000. Inducing the magnetic property, magnetic iron oxide is applied to connect between graphene flacks in the nano-composite. To find the best nano-composite, the optimum graphene and magnetic iron oxide blending ratio is 1:1. The proposed sensor shows a high mechanical fracture recovery, sensitivity towards strain, and excellent self-healing property. The proposed devices maintain their performance over 10,000 times bending/relaxing cycles, and 94% of their function are recovered even after cutting them. The device also demonstrates stretchability up to 54.5% and a stretching factor is decreased down to 32.5% after cutting them. The gauge factor of the device is 271.4 at 35%, which means its sensitivity is good. Hence, these results may open a new opportunity towards the design and fabrication of future self-healing wearable strain sensors and their applied electronic devices.

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“…Silicone elastomer i.e. Poly(dimethylsiloxane (PDMS)) is the most widely used base material for mixing conductive nanoparticles [13,16,[18][19][20][21]. PDMS offers attractive features such as, easy processing, efficient moldability, biocompatibility, chemical inertness and stretchability [20].…”

Section: Introductionmentioning

confidence: 99%

“…Poly(dimethylsiloxane (PDMS)) is the most widely used base material for mixing conductive nanoparticles [13,16,[18][19][20][21]. PDMS offers attractive features such as, easy processing, efficient moldability, biocompatibility, chemical inertness and stretchability [20]. The piezoresistance mechanism is dependent upon the conductive fillers concentration, geometry, interconnecting conductive channels and tunneling between nanofillers in the polymer matrix, which change the electrical properties upon application of a force (normal/tangential) or structural elongation [16,22].…”

Section: Introductionmentioning

confidence: 99%

Flexible coplanar waveguide strain sensor based on printed silver nanocomposites

et al. 2019

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This paper presents a robust approach towards the design and fabrication of a stretchable coplanar waveguide monopole strain sensor that measures the tensile strain through a linear shift in the resonance frequency unlike the conventional patch antennas strain sensors. The increment in physical length upon application of stretching force on the sensor results into lowering of the resonance frequency, which is correlated with tensile strain. Being a 2d structure, the sensor can easily be deployed on a planar surface to determine the tensile strain. Sensor parameters are optimized through simulations in high frequency structure simulator software. Silver nanowires (AgNWs) based solution is screen printed using a shadow mask on an elastomeric polydimethylsiloxane substrate. The operating frequency of the sensor is 2.49 GHz at ambient condition and it goes down to 2.31 GHz at 6.1% stretching. The simulated sensitivity of the sensor is 0.072 MHz/µm and measured sensitivity of 0.076 MHz/µm has been tested for more than 200 cycles, clearly illustrating the robustness of the proposed approach. These promising results show that this sensor can successfully be implemented for printed wearable applications targeted for monitoring of strain related activities.

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Ink-jet printed stretchable strain sensor based on graphene/ZnO composite on micro-random ridged PDMS substrate

Cited by 59 publications

References 31 publications

Graphene Nanostructure-Based Tactile Sensors for Electronic Skin Applications

Graphene Nanostructure-Based Tactile Sensors for Electronic Skin Applications

Inkjet printed self-healable strain sensor based on graphene and magnetic iron oxide nano-composite on engineered polyurethane substrate

Flexible coplanar waveguide strain sensor based on printed silver nanocomposites

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