Effect of sodium niobate (NaNbO<sub>3</sub>) nanorods on <i>β</i>-phase enhancement in Polyvinylidene fluoride (PVDF) polymer

Anand, Abhishek; Bhatnagar, M.C.

doi:10.1088/2053-1591/aaefd9

Cited by 14 publications

(8 citation statements)

References 31 publications

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“…However, inorganic piezoelectric materials, such as, lead zirconate titanate,42 BT,43 sodium niobate,44 lead magnesium niobate lead titanate,45 and zinc stannate (Zn 2 SnO 4 )46 have high significant piezoelectric performance but their rigid nature limit their application in flexible self‐powered devices 41. Hybrid piezoelectric composites for energy harvesting based on BT is attractive because of its high dielectric constant (ε ∼ 2000), low cost, natural abundance, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

“…One potential method to increase the dielectric constant of the PVDF polymers is to introduce high dielectric constant materials such as inorganic piezoelectric materials (i.e., barium titanate (BT) nanoparticles) into the PVDF matrix. [14,40,41] However, inorganic piezoelectric materials, such as, lead zirconate titanate, [42] BT, [43] sodium niobate, [44] lead magnesium niobate lead titanate, [45] and zinc stannate (Zn 2 SnO 4 ) [46] have high significant piezoelectric performance but their rigid nature limit their application in flexible self-powered devices. [41] Hybrid piezoelectric composites for energy harvesting based on BT is attractive because of its high dielectric constant (ε ∼ 2000), low cost, natural abundance, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

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Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Mokhtari

Spinks

Fay

et al. 2020

Adv Materials Technologies

128

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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%

Section: Introductionmentioning

confidence: 99%

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Mokhtari

Spinks

Fay

et al. 2020

Adv Materials Technologies

128

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show abstract

“…The obtained results demonstrate that the formation of polar polymorphs and in particular of β-PVDF in the composite materials is promoted by the presence of ultrafine silver nanoparticles, although α-PVDF conformation still remains in the majority. The enhancement of β/γ polar phases of PVDF when embedding fine particles such as with ferroelectrics as BaTiO 3 nanoparticles, 67 sodium niobate nanorods, 68 simple oxide particles as GeO 2 and SiO 2 , 69 Ag nanofillers, 70,71 carbon nanotubes, 72 graphene-based fillers, 73 and so forth was reported. Various interactions have been proposed for each type of filler-PVDF matrix, 74 but a clarification of the general mechanisms providing the enhancement of the amount of polar polymorphs induced by nanofillers in PVDF was demonstrated by a chemical mapping of the interfacial coupling between the nanofiller and the matrix.…”

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confidence: 99%

Influence of Ferroelectric Filler Size and Clustering on the Electrical Properties of (Ag–BaTiO₃)–PVDF Sub-Percolative Hybrid Composites

Padurariu

Horchidan

Ciomaga

et al. 2023

ACS Appl. Mater. Interfaces

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The paper presents a study concerning the role of ferroelectric filler size and clustering in the dielectric properties of 20%BaTiO 3 −80%PVDF and of 20% (2%Ag−98%BaTiO 3 )−PVDF hybrid nanocomposites. By finite element calculations, it was shown that using fillers with ε > 10 3 does not provide a permittivity rise in the composites and the effective dielectric constant tends to saturate to specific values determined by the filler size and agglomeration degree. Irrespective of the ferroelectric filler sizes, the addition of metallic ultrafine nanoparticles (Ag) results in permittivity intensification and the effect is even stronger if the metallic nanoparticles are connected to a higher degree with the ferroelectric particles' surfaces. When using coarse ferroelectric fillers, the probability of clustering is higher, thus favoring the permittivity increase by field concentration in small regions close to the interfaces separating dissimilar materials. The modeling results were validated by an experimental dielectric analysis performed in a series of PVDF-based thick films with the same amount of BaTiO 3 fillers or with Ag−BaTiO 3 hybrid fillers. Similar trends as predicted by simulations were found experimentally but with slightly higher permittivity values which were assigned to the modifications of the polymer phase composition due to the presence of nanofillers and the local sample inhomogeneity (the presence of clustering, in particular for coarse BaTiO 3 grains), which create regions with enhanced local fields.

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“…It follows that this rate defines the amount of energy that can be generated with pyroelectric energy harvesting . Highly textured composites with anisotropic thermal transport properties should be designed and fabricated to maximize further the response of the pyroelectric harvesting materials. , …”

Section: Resultsmentioning

confidence: 99%

Multifunctional Properties of Polyvinylidene-Fluoride-Based Materials: From Energy Harvesting to Energy Storage

Fricaudet

Žiberna

Salmanov

et al. 2022

ACS Appl. Electron. Mater.

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Organic ferroelectrics are increasingly important due to their complementary properties to classical, inorganic ferroelectrics. Flexibility, chemical resistance, scalability, high breakdown fields, and biocompatibility are attractive for many applications like energy harvesting and storage. The most known energy harvesting methods are piezoelectric, pyroelectric, and triboelectric. Here, we apply the well-established material's figures of merit to five polyvinylidenefluoride-based compositions ranging from ferroelectric to relaxor-like behavior to emphasize the importance of several key material parameters contributing to the maximal power output of energy harvesting devices. Afterward, we discuss the possibility of the same functional material storing the output energy for the development of scalable multifunctional devices.

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Effect of sodium niobate (NaNbO₃) nanorods on β-phase enhancement in Polyvinylidene fluoride (PVDF) polymer

Cited by 14 publications

References 31 publications

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Influence of Ferroelectric Filler Size and Clustering on the Electrical Properties of (Ag–BaTiO₃)–PVDF Sub-Percolative Hybrid Composites

Multifunctional Properties of Polyvinylidene-Fluoride-Based Materials: From Energy Harvesting to Energy Storage

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Effect of sodium niobate (NaNbO3) nanorods on β-phase enhancement in Polyvinylidene fluoride (PVDF) polymer

Cited by 14 publications

References 31 publications

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Influence of Ferroelectric Filler Size and Clustering on the Electrical Properties of (Ag–BaTiO3)–PVDF Sub-Percolative Hybrid Composites

Multifunctional Properties of Polyvinylidene-Fluoride-Based Materials: From Energy Harvesting to Energy Storage

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Product

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About

Effect of sodium niobate (NaNbO₃) nanorods on β-phase enhancement in Polyvinylidene fluoride (PVDF) polymer

Influence of Ferroelectric Filler Size and Clustering on the Electrical Properties of (Ag–BaTiO₃)–PVDF Sub-Percolative Hybrid Composites