A novel polarization-free 3D printing strategy for fabrication of poly (Vinylidene fluoride) based nanocomposite piezoelectric energy harvester

Pei, Haoran; Xie, Yeping; Xiong, Yu; Lv, Qinniu; Chen, Yinghong

doi:10.1016/j.compositesb.2021.109312

Cited by 36 publications

(13 citation statements)

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“…However, the reported piezoelectric coefficients in these studies (Kim et 46 In addition, some researchers incorporated fillers to induce the generation of b phases in the FFF 3D printed PVDF films. Pei et al 47 added 5 wt% tetraphenylphosphonium chloride (TPPC) nanoparticles to obtain 83.8% b phases, while 28.9% of the b phase content for pure PVDF. Liu et al 48 enhanced the b phase content of the PVDF filament to 93% by adding 15 wt% ionic liquid as compared to only 13.5% of the b phase in pure PVDF.…”

Section: Introductionmentioning

confidence: 99%

Fused filament fabrication of PVDF films for piezoelectric sensing and energy harvesting applications

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Fused filament fabrication of PVDF films for piezoelectric sensing and energy harvesting applications

et al. 2022

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“…In addition, it is found that the dielectric constant of the nanocomposites significantly decreases with increasing frequency, especially in the low-frequency region. This phenomenon could be attributed to the Maxwell–Wagner–Sillars (MWS) interfacial polarization appearing at the PVDF-TPPC and PVDF-BaTiO 3 interfaces …”

Section: Resultsmentioning

confidence: 99%

“…Currently, the structural design of piezoelectric devices either in theory or in practice has attracted considerable attention due to the wider potential applications. Fused filament fabrication (FFF) 3D printing recently has proven to be well suitable for the fabrication of piezoelectric devices, since the designed array and porous structures can effectively improve electromechanical responses. − Kim et al demonstrated a high-efficiency piezoelectric response based on a FFF 3D-printed PVDF/BaTiO 3 film. Liu et al also developed a piezoelectric PVDF-based energy harvester with a designed hemispherical protrusion array structure through FFF 3D-printing method.…”

Section: Introductionmentioning

confidence: 99%

“…Very recently, we also developed a FFF 3D-printing strategy to fabricate a porous piezoelectric PVDF/tetraphenylphosphonium chloride (TPPC) energy harvester. The porous structures effectively increased the deformation capacity of the FFF 3D-printed parts, hence resulting in a high response to the mechanical stress of the obtained piezoelectric energy harvester …”

Section: Introductionmentioning

confidence: 99%

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Combining Solid-State Shear Milling and FFF 3D-Printing Strategy to Fabricate High-Performance Biomimetic Wearable Fish-Scale PVDF-Based Piezoelectric Energy Harvesters

Pei

Shi

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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High-performance flexible piezoelectric polymer− ceramic composites are in high demand for increasing wearable energy-harvesting applications. In this work, a strategy combining solid-state shear milling (S 3 M) and fused filament fabrication (FFF) 3D-printing technology is proposed for the fabrication of high-performance biomimetic wearable piezoelectric poly-(vinylidene fluoride) (PVDF)/tetraphenylphosphonium chloride (TPPC)/barium titanate (BaTiO 3 ) nanocomposite energy harvesters with a biomimetic fish-scale-like metamaterial. The S 3 M technology could greatly improve the dispersion of BaTiO 3 submicrometer particles and the interfacial compatibility, resulting in better processability and piezoelectric performance of the nanocomposites. Typically, the FFF 3D printed energy harvester incorporating 30 wt % BaTiO 3 showed the highest piezoelectric outputs with an open-circuit voltage of 11.5 V and a short-circuit current of 220 nA. It could hence drive nine green LEDs to work normally. In addition, a 3D-printed biomimetic wearable energy harvester inspired by an environmentally adaptive fish-scale-like metamaterial was further fabricated. The fish-scale-like energy harvester could harvest energy through different deformation motions and successfully recharge a 4.7 μF capacitor by being mounted on a bicycle tire and the tire's rolling. This work not only provides a 3D printing strategy for designing diversified and complex geometric structures but also paves the way for further applications in flexible, wearable, self-powered electromechanical energy harvesters.

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“…Semi-crystalline piezoelectric fluoropolymers, such as polyvinylidene fluoride (PVDF), are widely explored materials that can be synthesized as films, membranes, and fibers for a wide range of applications [1], including energy harvesting [2], piezoelectric actuators [3], ultrasonic transducers [4], porous membranes [5], and pressure sensors [6][7][8], to list a few. These devices are commonly fabricated using techniques, such as solution-casting [9], spin coating [10], electrospinning [11], 3D printing [12], electrospray deposition [13], and spray coating [14]. PVDF and co-polymer structures offer advantages, such as low cost, facile manufacturing, high mechanical strength, chemical stability, flexibility, good piezoelectricity, and biocompatibility [15].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Characterization of Solution-Cast Pristine and Reduced Graphene Oxide Composite Polyvinylidene Fluoride Films for Sensory Applications

Hintermueller¹,

Prakash²

2022

Polymers

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Pristine and doped polyvinylidene fluoride (PVDF) are actively investigated for a broad range of applications in pressure sensing, energy harvesting, transducers, porous membranes, etc. There have been numerous reports on the improved piezoelectric and electric performance of PVDF-doped reduced graphene oxide (rGO) structures. However, the common in situ doping methods have proven to be expensive and less desirable. Furthermore, there is a lack of explicit extraction of the compression mode piezoelectric coefficient (d33) in ex situ rGO doped PVDF composite films prepared using low-cost, solution-cast processes. In this work, we describe an optimal procedure for preparing high-quality pristine and nano-composite PVDF films using solution-casting and thermal poling. We then verify their electromechanical properties by rigorously characterizing β-phase concentration, crystallinity, piezoelectric coefficient, dielectric permittivity, and loss tangent. We also demonstrate a novel stationary atomic force microscope (AFM) technique designed to reduce non-piezoelectric influences on the extraction of d33 in PVDF films. We then discuss the benefits of our d33 measurements technique over commercially sourced piezometers and conventional piezoforce microscopy (PFM). Characterization outcomes from our in-house synthesized films demonstrate that the introduction of 0.3%w.t. rGO nanoparticles in a solution-cast only marginally changes the β-phase concentration from 83.7% to 81.7% and decreases the crystallinity from 42.4% to 37.3%, whereas doping increases the piezoelectric coefficient by 28% from d33 = 45 pm/V to d33 = 58 pm/V, while also improving the dielectric by 28%. The piezoelectric coefficients of our films were generally higher but comparable to other in situ prepared PVDF/rGO composite films, while the dielectric permittivity and β-phase concentrations were found to be lower.

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A novel polarization-free 3D printing strategy for fabrication of poly (Vinylidene fluoride) based nanocomposite piezoelectric energy harvester

Cited by 36 publications

References 76 publications

Fused filament fabrication of PVDF films for piezoelectric sensing and energy harvesting applications

Fused filament fabrication of PVDF films for piezoelectric sensing and energy harvesting applications

Combining Solid-State Shear Milling and FFF 3D-Printing Strategy to Fabricate High-Performance Biomimetic Wearable Fish-Scale PVDF-Based Piezoelectric Energy Harvesters

Comprehensive Characterization of Solution-Cast Pristine and Reduced Graphene Oxide Composite Polyvinylidene Fluoride Films for Sensory Applications

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