Polyglycolated zinc ferrite incorporated poly(vinylidene fluoride)(PVDF) composites with enhanced piezoelectric response

Chinya, Ipsita; Pal, Avijit; Sen, Shrabanee

doi:10.1016/j.jallcom.2017.06.028

Cited by 46 publications

(26 citation statements)

References 48 publications

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“…According to previous studies we can assume that, after polyglycolation, Li‐ZnO becomes more negatively charged, which promotes interaction with the —CH 2 groups of PVDF via local electrostatic interactions (shown Figure ). This promotes and stabilizes the bipolar ordering in PVDF.…”

Section: Resultsmentioning

confidence: 74%

“…Harvesting energy from the environment and sensing environmental stresses are both potential motivations for the fabrication of novel, high‐yield piezoelectric materials . Among the various sources of energy available, mechanical energy is perhaps the most abundant in daily life and is obtained through activities such as human motion, walking, vibration, fluid flow, and respiration . Piezoelectric nanogenerators are the most straightforward and cleanest method of scavenging this energy, and they have the ability to act as sensors that generate an electrical signal from mechanical action upon the substrate .…”

Section: Introductionmentioning

confidence: 99%

“…Chinya et al reported that an increase in the polar phase can be achieved with surface treatment of filler ceramics. Their experiment with PEG‐coated zinc ferrite achieved up to 92% polar phase without any external poling action . These studies have led to increasing interest in piezoelectric nanogenerators/sensors comprising lithium‐doped zinc oxide and PVDF polymer.…”

Section: Introductionmentioning

confidence: 99%

“…[1,2] Among the various sources of energy available, mechanical energy is perhaps the most abundant in daily life and is obtained through activities such as human motion, [3] walking, [4] vibration, [5] fluid flow, [6] and respiration. [7] Piezoelectric nanogenerators are the most straightforward and cleanest method of scavenging this energy, and they have the ability to act as sensors that generate an electrical signal from mechanical action upon the substrate. [8,9] Ung-ho Shin et al experimented with lithium-doped zinc oxide nanowire polymer composites, and a significant change was found in the voltammetric response with doping of the piezoelectric material.…”

Section: Introductionmentioning

confidence: 99%

“…Their experiment with PEG-coated zinc ferrite achieved up to 92% polar phase without any external poling action. [7] These studies have led to increasing interest in piezoelectric nanogenerators/sensors comprising lithium-doped zinc oxide and PVDF polymer. Indeed, surfacetreated zinc ferrite has shown output voltages of up to 18 V without any poling action, which is very promising.…”

Section: Introductionmentioning

confidence: 99%

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Surface‐Modified Nanostructured Piezoelectric Device as a Cost‐Effective Transducer for Energy and Biomedicine

et al. 2019

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Flexible polymer–metal oxide nanocomposites with multiwalled carbon nanotube (MWCNT) films are fabricated using poly(vinylidene fluoride) (PVDF) as the bulk matrix material with three‐dimensional (3D) lithium‐doped zinc oxide (Li‐ZnO) as a filler. Li‐ZnO is synthesized hydrothermally followed by surface modification with polyethylene glycol (PEG). PEG coating serves as an effective solution for avoiding costly electrical poling and enhances the proportion of the PVDF β phase, while MWCNTs act to increase conductivity and to reinforce the composite during mechanical stressing. The piezoelectric composite is fabricated with 12 wt% surface‐modified Li‐ZnO with 0.2 wt% MWCNT relative to the bulk PVDF. The fabricated composite is tested with different body motions and in different environments. The highest obtained value of open circuit voltage is 10.1 V and 2740 µA amperometric alternating current with bending motions. It is also observed that the electrical signal fluctuates by ≈200 µA due to microrelaxation and microstressing under constant stress conditions. The piezoelectric nanocomposite shows a linear response to a gradual increase in normal stress.

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Section: Resultsmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Surface‐Modified Nanostructured Piezoelectric Device as a Cost‐Effective Transducer for Energy and Biomedicine

et al. 2019

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Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

et al. 2021

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Piezoelectric materials are widely referred to as "smart" materials because they can transduce mechanical pressure acting on them to electrical signals and vice versa. They are extensively utilized in harvesting mechanical energy from vibrations, human motion, mechanical loads, etc., and converting them into electrical energy for low power devices. Piezoelectric transduction offers high scalability, simple device designs, and high-power densities compared to electro-magnetic/static and triboelectric transducers. This review aims to give a holistic overview of recent developments in piezoelectric nanostructured materials, polymers, polymer nanocomposites, and piezoelectric films for implementation in energy harvesting. The progress in fabrication techniques, morphology, piezoelectric properties, energy harvesting performance, and underpinning fundamental mechanisms for each class of materials, including polymer nanocomposites using conducting, non-conducting, and hybrid fillers are discussed. The emergent application horizon of piezoelectric energy harvesters particularly for wireless devices and self-powered sensors is highlighted, and the current challenges and future prospects are critically discussed.

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Tuning piezoelectric properties in elastomeric polyurethane nanocomposites utilizing cellulose nanocrystals

Sanches

Silva

Malmonge

et al. 2021

J of Applied Polymer Sci

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Flexible piezoelectric nanocomposites have been the subject of a lot of recent research due to the development and use of wearable electronic devices and the increasing need for new harvesting devices and sensors due to increasingly intelligent and interconnected cities. In this study, flexible piezoelectric nanocomposites using elastomeric polyurethane (PU) as matrix, and lead zirconate titanate (PZT) as active phase, were produced using cellulose nanocrystals (CNC) as the third phase. The study describes the effect of CNC insertion on the morphology, thermal, electrical, and piezoelectric properties of the nanocomposites. It points out that the CNCs not only act to cause greater dispersion of the ceramic grains in the matrix, but also to lead to greater polarization effectiveness of the ceramic grains, resulting in a longitudinal piezoelectric coefficient (d33) increase of more than 370%, as compared with biphasic composites dependent on the ceramic and nanocrystals content.

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Polyglycolated zinc ferrite incorporated poly(vinylidene fluoride)(PVDF) composites with enhanced piezoelectric response

Cited by 46 publications

References 48 publications

Surface‐Modified Nanostructured Piezoelectric Device as a Cost‐Effective Transducer for Energy and Biomedicine

Surface‐Modified Nanostructured Piezoelectric Device as a Cost‐Effective Transducer for Energy and Biomedicine

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

Tuning piezoelectric properties in elastomeric polyurethane nanocomposites utilizing cellulose nanocrystals

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