Highly stretchable, sensitive, and flexible strain sensors based on silver nanoparticles/carbon nanotubes composites

Zhang, Shangjie; Zhang, Hulin; Yao, Guang; Liao, Feiyi; Gao, Min; Huang, Zhenlong; Li, Kunyang; Lin, Yuan

doi:10.1016/j.jallcom.2015.08.187

Cited by 136 publications

(96 citation statements)

References 30 publications

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“…The function of the sensing element is to convert external mechanical stimuli into electrical signals. To date, PDMS-based flexible resistive strain sensors have been fabricated by using conducting materials (e.g., EGaIn, Ti/Au, silver nanowires (AgNWs), and Ag nanoparticles (Ag NPs)) [53][54][55][56], carbon materials (e.g., graphene, graphene oxide (rGO), carbon nanotubes (CNTs), and carbon black (CB)) [4,[57][58][59], and their hybrid micro/nano-composite [60].…”

Section: Materials and Fabrication Methodsmentioning

confidence: 99%

Polydimethylsiloxane (PDMS)-Based Flexible Resistive Strain Sensors for Wearable Applications

et al. 2018

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There is growing attention and rapid development on flexible electronic devices with electronic materials and sensing technology innovations. In particular, strain sensors with high elasticity and stretchability are needed for several potential applications including human entertainment technology, human-machine interface, personal healthcare, and sports performance monitoring, etc. This article presents recent advancements in the development of polydimethylsiloxane (PDMS)-based flexible resistive strain sensors for wearable applications. First of all, the article shows that PDMS-based stretchable resistive strain sensors are successfully fabricated by different methods, such as the filtration method, printing technology, micromolding method, coating techniques, and liquid phase mixing. Next, strain sensing performances including stretchability, gauge factor, linearity, and durability are comprehensively demonstrated and compared. Finally, potential applications of PDMS-based flexible resistive strain sensors are also discussed. This review indicates that the era of wearable intelligent electronic systems has arrived.

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Section: Materials and Fabrication Methodsmentioning

confidence: 99%

Polydimethylsiloxane (PDMS)-Based Flexible Resistive Strain Sensors for Wearable Applications

et al. 2018

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“…The electrical conductive of foamed nanocomposites were regular enhanced, which is attributed to the increase of the overlapping area among the adjacent GNPs upon foaming, and the simultaneous decrease of the distance between the binary conductive particles. Meanwhile, the GNPs/CB synergistic conductive network plays an important role, resulting in an enhancement of the electrical conductivities and mechanical stability . With extending of the foaming time, as shown in Figure (c), the cell walls became noticeable thin, and the thickness of the cell walls are similar to the diameter of conductive particles [dashed area marked 1 in Figure (e)].…”

Section: Electrical Conductivity Tranformation Mechanism and Tecnologmentioning

confidence: 99%

Electrical conductivity transformation mechanism of GNPs/CB/SR nanocomposite foams

Liu

Hao

et al. 2017

J of Applied Polymer Sci

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Highly flexible and electrically conductive graphene nanoparticles/carbon black/silicon rubber (GNPs/CB/SR) based nanocomposite foams were formed by using azodicarbonamide (AC) physical foaming technology. The foaming parameters (foaming agent and foaming time) were analyzed to investigate the influence on the electrical properties and microcellular structure. The electrical percolation threshold of GNPs/CB/SR nanocomposite foams approximately decreases from 25% to 30%, as the volume expansion increases through foaming. Nanocomposite foams with conductive fillers of 3–12 wt %, foaming agent of 12–18 wt %, foaming time of about 150–500 s, relative densities of 1.0–0.4 g/cm3 were achieved, providing a scheme to evaluate the transformation of electrical properties with different foaming degree. It is worth noting that the product of AC agent concentration and foaming time reaches a certain value, and the highest electrical conductivity of foamed nanocomposites could be achieved. The nonmonotonicity changing of the electrical conductivity was demonstrated. Combined with the microtopography characterization, the cell growth effect was introduced to illustrate the transformation mechanism of the electrical conductivity. The relationship between the microcellular structure and the electrical conductivity of the foamed nanocomposites was established, which is essential for further optimizations of the foaming materials for the targeted application. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45996.

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“…To overcome these challenges, hybrid composites that incorporate metal nanocomposites inside polymers have been developed. Mixing NWs with another conductive nanomaterial became a solution for overcoming the limitations of film conductivity and sheet resistance incurred by using NWs alone [80,81] . Most NW hybrid systems target adhesion optimization between NW and polymer, toward improved mechanical stability.…”

Section: Mixed-metal Compositesmentioning

confidence: 99%

“…Exploiting the characteristics of hybrid materials, such as conductivity, elasticity, transparency and piezoresistivity, has enabled the development of a variety of soft, stretchable sensors, including strain, pressure, tactile and acoustic sensors [40,68,69,80,84,139] . For instance, carbon black composites in soft elastomers led to the development of wearable piezoresistive strain sensors for taking movement and assessing skin properties.…”

Section: Applications Of Stretchable Conductive Compositesmentioning

confidence: 99%

From stretchable to reconfigurable inorganic electronics

Nassar

Rojas

Hussain

et al. 2016

Extreme Mechanics Letters

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Highly stretchable, sensitive, and flexible strain sensors based on silver nanoparticles/carbon nanotubes composites

Cited by 136 publications

References 30 publications

Polydimethylsiloxane (PDMS)-Based Flexible Resistive Strain Sensors for Wearable Applications

Polydimethylsiloxane (PDMS)-Based Flexible Resistive Strain Sensors for Wearable Applications

Electrical conductivity transformation mechanism of GNPs/CB/SR nanocomposite foams

From stretchable to reconfigurable inorganic electronics

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