New developments in composites, copolymer technologies and processing techniques for flexible fluoropolymer piezoelectric generators for efficient energy harvesting

Shepelin, Nick A.; Glushenkov, Alexey M.; Lussini, Vanessa C.; Fox, Phillip J.; Dicinoski, Greg W.; Shapter, Joseph G.; Ellis, Amanda

doi:10.1039/c8ee03006e

Cited by 229 publications

(189 citation statements)

References 213 publications

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“…Among the variety of materials exhibiting piezoelectricity, polymers are of interest due to several enhanced properties desirable in flexible piezoelectric generators. Recently, much attention has been paid to poly(vinylidene fluoride)29,30 (PVDF). This nontoxic material is a semicrystalline polymer that exists in four different crystalline forms (α, β, γ, and δ)31 depending on the preparation conditions 32.…”

Section: Introductionmentioning

confidence: 99%

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Mokhtari

Spinks

Fay

et al. 2020

Adv Materials Technologies

137

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to produce a new generation of smart garments.Such affordable smart garments could fulfil diverse applications, ranging from work wear in specific industries to the almost infinite scenarios of personal use including energy harvesting/storage, force/pressure measurement, porosity or color variation, and sensors (movement, temperature, chemicals). [1][2][3][4][5][6][7] However, performance, scalability, and cost problems have restricted the deployment of currently available smart textiles. To build smart textiles on an industrial scale, method of manufacturing and material selection are two important requirements. The approach of new energy materials and novel fabrication methods are essential to develop wearable technologies. Wearable energy generating devices that can be seamlessly integrated into garments are a critical component of the wearable electronics genre. Currently flexible fiber energy harvesters have attracted significant attention due to their ability to be integrated into fabrics, or stitched into existing textiles. Large-scale production of energy harvester fibers using conventional manufacturing processes, however, is still a challenge.Energy harvesting from environmental mechanical sources such as body movements including finger imparting, [8] pushing, [9] stretching, [10] bending, [11] twisting, [12] air flow, [13] transportation movement, [14] and sound waves [15] has attracted widespread attention to promote flexible self-powered devices. [16] The best common mechanical energy harvesting methods are based on piezoelectric materials. [17] Piezoelectric materials can be classified in three categories: piezoelectric ceramics, piezoelectric polymers, and piezoelectric composites. [18] Unlike the energy harvesters utilizing solar or thermal energy, performance of piezoelectric generators is generally not limited by environmental factors. [19] Piezoelectric generators have received massive interest in energy harvesting technology due to their unique ability to capture the ambient vibrations to generate electric signals. [20] The unique energy transduction of piezoelectric materials enables their applications in fields of energy harvesting, actuators, [21] sensors, [22] structural health monitoring, and use in biomedical devices. [23] Numerous approaches have been used to fabricate piezoelectric generators, such as coating, [24] spinning, [25] depositing, [26] and printing. [27] Wearable energy harvesting is of practical interest for many years and for diverse applications, including development of self-powered wireless sensors within garments for human health monitoring. Herein, a novel approach is reported to create wearable energy generators and sensors using nanostructured hybrid piezoelectric fibers and exploiting the enormous variety of textile architectures. It is found that high performance hybrid piezofiber is obtained using a barium titanate (BT) nanoparticle and poly(vinylidene fluoride) (PVDF) with a mass ratio of 1:10. These fibers are knitted to form a wearable energy generator that pr...

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Section: Introductionmentioning

confidence: 99%

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Mokhtari

Spinks

Fay

et al. 2020

Adv Materials Technologies

137

View full text Add to dashboard Cite

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“…Polymer-based high-dielectric-constant (high-k) materials have been explored for the extensive applications in modern electronic devices such as capacitors, actuators, sensors, and electromagnetic interference shielding due to their advantages of good processability, mechanical flexibility, light weight, low cost, and high breakdown strength [1][2][3][4][5][6][7]. Generally, it is challenging to use neat polymers to satisfy these needs because of their intrinsically low dielectric constant [8][9][10][11][12].…”

mentioning

confidence: 99%

Chemically bonding BaTiO₃ nanoparticles in highly filled polymer nanocomposites for greatly enhanced dielectric properties

Chen

Zhang

et al. 2020

J. Mater. Chem. C

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“…The γ phase of PVDF is a transitional state between α and β ( Figure 1d), it has a smaller dipole moment than the β phase [35]. It is necessary to increase the proportion of β phase in PVDF to maximize its electromechanical conversion efficiency [36].…”

Section: The Piezoelectric Effect Principle Of Pvdfmentioning

confidence: 99%

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

Guo

Duan

Xie

et al. 2020

Preprint

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The technological development of piezoelectric materials is crucial for developing wearable and flexible electromechanical devices. There are many inorganic materials with piezoelectric effects, such as piezoelectric ceramics, aluminum nitride, and zinc oxide. They all have very high piezoelectric coefficients and large piezoelectric response ranges. The characteristics of high hardness and low tenacity make inorganic piezoelectric materials unsuitable for flexible devices that require frequent bending. Polyvinylidene fluoride (PVDF) and its derivatives are the most popular materials used in flexible electromechanical devices in recent years and have high flexibility, high sensitivity, high ductility, and a certain piezoelectric coefficient. Owing to increasing the piezoelectric coefficient of PVDF, researchers are committed to optimizing PVDF materials and enhancing their polarity by a series of means to further improve their mechanical–electrical conversion efficiency. This paper reviews the latest PVDF-related optimization materials, related processing and polarization methods, and the applications of these materials such as those in wearable functional devices, chemical sensors, biosensors, and flexible actuator devices for flexible micro-electromechanical devices. We also discuss the challenges of wearable devices based on flexible piezoelectric polymer, consider where further practical applications could be.

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New developments in composites, copolymer technologies and processing techniques for flexible fluoropolymer piezoelectric generators for efficient energy harvesting

Abstract: A comprehensive review of current developments in flexible fluoropolymer-based piezoelectric generators for sustainable energy harvesting.

Cited by 229 publications

References 213 publications

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Chemically bonding BaTiO₃ nanoparticles in highly filled polymer nanocomposites for greatly enhanced dielectric properties

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

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New developments in composites, copolymer technologies and processing techniques for flexible fluoropolymer piezoelectric generators for efficient energy harvesting

Abstract: A comprehensive review of current developments in flexible fluoropolymer-based piezoelectric generators for sustainable energy harvesting.

Cited by 229 publications

References 213 publications

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Chemically bonding BaTiO3 nanoparticles in highly filled polymer nanocomposites for greatly enhanced dielectric properties

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

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Chemically bonding BaTiO₃ nanoparticles in highly filled polymer nanocomposites for greatly enhanced dielectric properties