Piezoelectricity of nano-SiO<sub>2</sub>/PVDF composite film

Zhao, Yangzhou; Yuan, Weifeng; Zhao, Chaoyang; Gu, Bin; Hu, Ning

doi:10.1088/2053-1591/aadb29

Cited by 13 publications

(6 citation statements)

References 20 publications

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“…[ 62 ] . These fabrication types are based on flexible piezoelectric energy harvesting devices using the PZT and flexible materials, including nanotubes, [ 63 ] nanorods, [ 64 ] nanowires, [ 65 ] nanofibers, [ 66 ] nanocomposites, [ 67 ] besides thin films.…”

Section: Mechanical Vibration‐based Energy Harvestingmentioning

confidence: 99%

Advances in MEMS and Microfluidics‐Based Energy Harvesting Technologies

Mahmud

Bazaz

Dabiri

et al. 2022

Adv Materials Technologies

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harvesters that can replace conventional energy sources. [1] Microelectronic devices use small rechargeable or nonrechargeable batteries as their primary source of power. However, these batteries have a limited and uncertain lifetime, have difficulty replacing, and hence maintenance intensive. Energy harvesting devices are becoming an increasingly viable solution and may one day replace conventional batteries in low power applications. [2] Microfluidics analysis is one of the important research fields in MEMS, exhibiting broad market prospects due to characteristics, e.g., flexibility and the ability of rapid thermal transport. [3] Microfluidic devices are remarkably flexible and can be stretched in shape and size, allowing them to convert the deformation of the material into electricity. [4] It makes them capable of integrating the MEMS-based energy harvesters in self-powered sensors [5] located in various environments, such as the human body. [6] Also, microfluidics technology can be used for increasing the performance efficiency of energy harvesters by using as a heat exchanger [7] or embedding in the housing system. [8] Also, MEMS technology, which allows microscale structures to be fabricated inside energy harvesting devices, has enormously improved harvesting methods. It is a microstructure that ensures physical interactions happen in a tiny space so that the size of the harvester can be minimized and energy density can be improved.

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Section: Mechanical Vibration‐based Energy Harvestingmentioning

confidence: 99%

Advances in MEMS and Microfluidics‐Based Energy Harvesting Technologies

Mahmud

Bazaz

Dabiri

et al. 2022

Adv Materials Technologies

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“…These film piezoelectric catalysts are built following two types of designs. The majority are constructed by embedding powder catalysts into the polymeric piezoelectric matrix. − The piezoelectricity from the polymer matrix energizes environmental charges or the active electrons in the catalytic powder fillers to initiate chemical conversion processes. Another design strategy is to prepare piezoelectric catalysts by the seeded growth of a piezoelectric nanotube on a flexible matrix, such as ZnO nanotube cushions.…”

Section: Introductionmentioning

confidence: 99%

Breathable Bactericide Piezocatalyst Integrating Anode–Cathode Heterojunction Capacitance on a Piezoelectric–Conductive Film

Zhang

Wang

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Piezocatalysis has received great attention in recent years. However, despite the great promise therein, high-performance piezocatalysts are still rare and the principles in designing high-performance piezocatalysts remain lacking. We demonstrate here a novel piezocatalyst design by integrating the oxidizing and reducing reaction sites heterojunction on a piezoelectric and conductive matrix. The catalytic composite generates reactive oxidizing species with unprecedented high capabilities. The •O 2 − yield is over 400% that of previously reported catalysts and for the first time realized effective piezocatalytic bactericidal effects over 99%. A range of structural features, including proper energy band alignments, high capacitance, patterned high conductivity, voltage-regulated wettability, and effective piezoelectrical capability, are believed to synergize for their high piezocatalytic performance. This study has extended the piezocatalysts with new design principles, effective descriptors of merits, new applications, and effective performance capabilities.

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“…A variety of fillers including graphene oxide (GO), nanoclay, multiwalled carbon nanotube (MWCNT), titanium dioxide (TiO 2 ), and silicon dioxide (SiO 2 ) have been used as fillers to improve the piezoelectric response of polymers. , Poly(dimethylsiloxane)-based composite systems loaded with ZnO nanorods, exfoliated GO, and MWCNTs were reported as efficient piezoelectric energy harvesters for self-powered electronic devices . Boland et al.…”

Section: Introductionmentioning

confidence: 99%

Stimuli-Responsive Electrospun Piezoelectric Mats of Ethylene-co-vinyl Acetate–Millable Polyurethane–Nanohydroxyapatite Composites

Shafeeq

Karumuthil

Juraij

et al. 2021

ACS Appl. Mater. Interfaces

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Piezoelectric materials have gained interest among materials scientists as body motion sensors and energy harvesters on account of their fast responsiveness and substantial output signals. In this work, piezoelectric polymer mats have been fabricated from ethylene-co-vinyl acetate–millable polyurethane/nanohydroxyapatite (EVA–MPU/nHA) composite systems by employing the electrospinning technique. The ferro-piezoelectric features of the samples were confirmed from the butterfly loops of electrostatic force microscopy (EFM) amplitude signals as well as through the hysteresis curves of the EFM phase recorded with the assistance of dynamic-contact EFM. Piezoelectric responses of the samples to random finger tapping were evaluated after fabricating a simple device prototype connected to an oscilloscope. The efficacy of the mats to generate a voltage in response to activities such as mechanical bending, movement of throat muscles while drinking, movement of elbow joints, air blowing, and so forth has also been investigated. The results suggest the promising possibility of fabricating user-friendly piezoelectric mats out of the EVA–MPU/nHA system for physiological motion-sensing applications.

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Piezoelectricity of nano-SiO₂/PVDF composite film

Cited by 13 publications

References 20 publications

Advances in MEMS and Microfluidics‐Based Energy Harvesting Technologies

Advances in MEMS and Microfluidics‐Based Energy Harvesting Technologies

Breathable Bactericide Piezocatalyst Integrating Anode–Cathode Heterojunction Capacitance on a Piezoelectric–Conductive Film

Stimuli-Responsive Electrospun Piezoelectric Mats of Ethylene-co-vinyl Acetate–Millable Polyurethane–Nanohydroxyapatite Composites

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Piezoelectricity of nano-SiO2/PVDF composite film

Cited by 13 publications

References 20 publications

Advances in MEMS and Microfluidics‐Based Energy Harvesting Technologies

Advances in MEMS and Microfluidics‐Based Energy Harvesting Technologies

Breathable Bactericide Piezocatalyst Integrating Anode–Cathode Heterojunction Capacitance on a Piezoelectric–Conductive Film

Stimuli-Responsive Electrospun Piezoelectric Mats of Ethylene-co-vinyl Acetate–Millable Polyurethane–Nanohydroxyapatite Composites

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About

Piezoelectricity of nano-SiO₂/PVDF composite film