Ferroelectret materials and devices for energy harvesting applications

Zhang, Yan; Bowen, Chris; Ghosh, Sujoy Kumar; Mandal, Dipankar; Khanbareh, Hamideh; Arafa, Mustafa; Wan, Chaoying

doi:10.1016/j.nanoen.2018.12.040

Cited by 126 publications

(105 citation statements)

References 78 publications

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“…The pressure of the air in the voids could be instantaneously increased following compressive deformation of PDPU, and strong interaction will happen between the air and the elastomer to induce the electron transfer, resulting in electricity generation. Compared to the porous nonpolar polymer ferroelectrets that require a poling process at high electric field to break down the gas/air in the voids and a short decay time that affected the stability, the GS-TENG shows advantages of elimination of poling, convenience of operation, and reliable performance (38).…”

Section: Design and Working Mechanism Of Gs-tengmentioning

confidence: 99%

Self-healable sticky porous elastomer for gas-solid interacted power generation

et al. 2020

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A previously unknown gas-solid interacted power generation is developed using triboelectric effect. We designed an adhesive, gas-tight, and self-healing supramolecular polysiloxane-dimethylglyoxime–based polyurethane (PDPU) porous elastomer based on segmented oxime-carbamate-urea. It is an intrinsically triboelectric negative material with trapped air within closed voids, exhibiting ultrahigh static surface potential and excellent compressibility. This porous PDPU generates electricity from interactions between the trapped air and the elastomeric matrix under periodical compression. The positively charged trapped air (or other gas) dominates the tribo-electrification with PDPU, inducing electron transfer from gas to the solid polymer for electricity generation. The self-healable elastomer renders gas-solid interacted triboelectric nanogenerator, GS-TENG, with high stretchability (~1200%). The inherently adhesive surface enables adherance to other substrates, allowing mechanical energy harvesting from deformations such as bending, twisting, and stretching. GS-TENG promises a freestanding wearable functional tactile skin for self-powered sensing of touch pressure, human motions, and Parkinsonian gait.

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Section: Design and Working Mechanism Of Gs-tengmentioning

confidence: 99%

Self-healable sticky porous elastomer for gas-solid interacted power generation

et al. 2020

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“…For the sensors and device applications, ferroelectric polymers and its composites have drawn the attention of the scientific community owing to its various functionalities such as flexibility and easy fabrication [79]. Although polymers such as PVDF possess poor pyroelectric coefficient, they are very suitable for application owing to their easy fabrication for large area thin films; greater stability than TGS when subjected to heat, vacuum, and moisture; and mechanical robustness [51,80].…”

Section: Pyroelectricity In Ferroelectric Materialsmentioning

confidence: 99%

Pyroelectric Energy Conversion and Its Applications—Flexible Energy Harvesters and Sensors

Thakre

Kumar

Song

et al. 2019

Sensors

105

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Among the various forms of natural energies, heat is the most prevalent and least harvested energy. Scavenging and detecting stray thermal energy for conversion into electrical energy can provide a cost-effective and reliable energy source for modern electrical appliances and sensor applications. Along with this, flexible devices have attracted considerable attention in scientific and industrial communities as wearable and implantable harvesters in addition to traditional thermal sensor applications. This review mainly discusses thermal energy conversion through pyroelectric phenomena in various lead-free as well as lead-based ceramics and polymers for flexible pyroelectric energy harvesting and sensor applications. The corresponding thermodynamic heat cycles and figures of merit of the pyroelectric materials for energy harvesting and heat sensing applications are also briefly discussed. Moreover, this study provides guidance on designing pyroelectric materials for flexible pyroelectric and hybrid energy harvesting.

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“…Instead of charge displacement in a crystalline structure of a regular piezoelectric material, the effect called pseudo‐piezoelectric effect in charged polymer foams arises from the deformation of the ionized cells . As mentioned later, giant pseudo‐piezoelectric constants are obtained for a charged porous polymer with low dielectric constants compared to conventional piezoelectric polymers and ceramics .…”

Section: Introductionmentioning

confidence: 99%

Dielectric and mechanical optimization properties of porous poly(ethylene‐co‐vinyl acetate) copolymer films for pseudo‐piezoelectric effect

Ennawaoui¹,

Lifi²,

Hajjaji³

et al. 2019

Polymer Engineering & Sci

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In this article, the authors present a porous copolymer film with pseudo‐piezoelectric effects as a new candidate material for sensing applications. Porous films of poly(ethylene‐co‐vinyl acetate) (EVA) with a thicknesses ranging from 160 to 310 μm are fabricated by a coextrusion chemical foaming process and charged using a high‐voltage contact charging process. Output performances (piezoelectric constant and relative permittivity) with related thermal/mechanical stability are specifically studied as a function of the film porosity and of the electrical charging process. The piezoelectric constant d33 increases with the cell porosity and an interesting piezoelectric constant close to 5.1 pC/N is achieved with a porous EVA film containing 65% of porosity. Actual results are then discussed using a theoretical solid–gas multilayer model to describe and predict the pseudo‐piezoelectric effect of porous polymer materials. The originality of this work lies in the fact that all the steps leading to optimize pseudo piezoelectric films are included, and also in the use of EVA which is not a standard piezoelectric material. Therefore, this work is a contribution in the development of low‐cost piezoelectric materials with potential applications as sensor in different fields such as medical, security, environment, sport, and transport. POLYM. ENG. SCI., 59:1455–1461 2019. © 2019 Society of Plastics Engineers

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Ferroelectret materials and devices for energy harvesting applications

Cited by 126 publications

References 78 publications

Self-healable sticky porous elastomer for gas-solid interacted power generation

Self-healable sticky porous elastomer for gas-solid interacted power generation

Pyroelectric Energy Conversion and Its Applications—Flexible Energy Harvesters and Sensors

Dielectric and mechanical optimization properties of porous poly(ethylene‐co‐vinyl acetate) copolymer films for pseudo‐piezoelectric effect

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