Micropatterning and Integration of Electrospun PVDF Membrane Into Microdevice

Fadzallah, Iman Aris; Sabran, Nuur Syahidah; Toàn, Nguyễn Văn; Ono, Takahito; Said, Suhana Mohd; Sabri, Mohd Faizul Mohd

doi:10.1109/jmems.2020.2983717

Cited by 6 publications

(4 citation statements)

References 25 publications

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“…Besides, special treatment including electrospinning (Li et al, 2008), solventcasting (Hu et al, 2015), mechanical stretching, and polarization under high electric fields (Fukada and Sakurai., 1971;Cheng-Lu et al, 2014) of PVDF (Sencadas et al, 2009;Sharma et al, 2013;Won et al, 2016) have been employed. According to the research report on the electrospinning process of the high β-phase PVDF membrane, the micro-patterned device as an energy harvester can generate an open circuit voltage density of 1.42 V m −2 (Fadzallah et al, 2020). However, the electrospinning and solvent-casting usually induce some undesired structure deformation or microstructure defeats.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Piezoelectric Coefficient of PVDF-TrFE Films via In Situ Polarization

You

et al. 2021

Front. Energy Res.

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The d33 coefficient = 28 pC/N of PVDF-TrFE piezoelectric films was achieved by the in situ polarization. Compared with traditional poling methods, the in situ polarization is performed with low poling voltage and short poling time, and it can ensure the PVDF-TrFE film with enhanced piezoelectric performances and uniform distribution among a large area of 200 mm2 × 200 mm2. The processing influence of drying, annealing, and poling on the crystalline properties and piezoelectric performances were investigated. Besides, the obtained PVDF-TrFE films present a good piezoelectric response to different extents of mechanical stimulations, which have great potential in energy harvesting applications.

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Section: Introductionmentioning

confidence: 99%

Enhanced Piezoelectric Coefficient of PVDF-TrFE Films via In Situ Polarization

You

et al. 2021

Front. Energy Res.

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“…[1] Recent advances in piezo-polymer processing have enabled the development of such components for high-end electronics systems/subsystems and on flexible and/or transparent substrates. [2][3][4][5] This simply requires a highly responsive piezo-polymer material which favors in maximizing the figure of merit (FOM = mechanical to electrical conversion).…”

Section: Introductionmentioning

confidence: 99%

Reaching High Piezoelectric Performance with Rotating Directional‐Field‐Aligned PVDF–MoS₂ Piezo‐Polymer Applicable for Large‐Area Flexible Electronics

Srivastava,

Kumar,

Yousuf

et al. 2023

Macromol. Rapid Commun.

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Wearable electronics and smart harvesting textile studies require a material system that resists physical stimulation. Such applications require receptive piezo‐polymers and their activation‐free preparation in that it could also translate into a continuous large‐area film. In this work, we ask first whether the piezo‐polymer's β−content be extended with no use of any activation (poling) and secondly, if the β‐content increases, it can be processed over a wide range of surfaces alike large‐area piezo‐film. Such prerequisites within PVDF‐MoS2 piezo‐polymer are thoroughly experimented here to develop a high‐performance piezo film which simplifies the preparation steps. A MoS2 – mediated PVDF piezo‐polymer (termed as P+‐MoS2) is introduced in which other extra β‐enhancement activation step (e.g., poling/quenching) is not required after spin coating unlike previous methods. Experimental results record β = >80% which allows to harvest the voltage and current in the level of ∼17 Vand 1 μA, which satisfies the 5 V supply voltage (VDD) requirement of the current microelectronic and IoT's ICs. In addition, the capacitors having different capacities have been charged using the developed nanogenerator to check its practical aplicability. Therefore, P−MoS2 to aligned P+−MoS2 transition due to passive interlocking (PiL) through rotating directional‐field is novel and found to be a principal reason for β‐enhancement in fabricated devices. Reported P+‐MoS2 and its processing methods could be applied directly in implementing flexible electronic devices in that ∼5 V power supply and large‐area continuous piezo‐polymers are the main application concern.This article is protected by copyright. All rights reserved

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“…However, these techniques often require high sintering temperatures (>1000 °C), complex and time-consuming processing conditions, and hazardous materials. For example, patterning of poly(vinylidene fluoride) (PVDF) films needs the combination of spin coating and reactive ion etching 18 , 19 or micromold-assisted process 20 (soft lithography). For inorganic piezoelectric ceramics, the above patterning techniques lack compatibility with flexible and stretchable substrates.…”

Section: Introductionmentioning

confidence: 99%

Fast and versatile electrostatic disc microprinting for piezoelectric elements

Li,

Zhang,

Peng

et al. 2023

Nat Commun

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Nanoparticles, films, and patterns are three critical piezoelectric elements with widespread applications in sensing, actuations, catalysis and energy harvesting. High productivity and large-area fabrication of these functional elements is still a significant challenge, let alone the control of their structures and feature sizes on various substrates. Here, we report a fast and versatile electrostatic disc microprinting, enabled by triggering the instability of liquid-air interface of inks. The printing process allows for fabricating lead zirconate titanate free-standing nanoparticles, films, and micro-patterns. The as-fabricated lead zirconate titanate films exhibit a high piezoelectric strain constant of 560 pm V−1, one to two times higher than the state-of-the-art. The multiplexed tip jetting mode and the large layer-by-layer depositing area can translate into depositing speeds up to 109 μm3 s−1, one order of magnitude faster than current techniques. Printing diversified functional materials, ranging from suspensions of dielectric ceramic and metal nanoparticles, to insulating polymers, to solutions of biological molecules, demonstrates the great potential of the electrostatic disc microprinting in electronics, biotechnology and beyond.

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Micropatterning and Integration of Electrospun PVDF Membrane Into Microdevice

Cited by 6 publications

References 25 publications

Enhanced Piezoelectric Coefficient of PVDF-TrFE Films via In Situ Polarization

Enhanced Piezoelectric Coefficient of PVDF-TrFE Films via In Situ Polarization

Reaching High Piezoelectric Performance with Rotating Directional‐Field‐Aligned PVDF–MoS₂ Piezo‐Polymer Applicable for Large‐Area Flexible Electronics

Fast and versatile electrostatic disc microprinting for piezoelectric elements

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Micropatterning and Integration of Electrospun PVDF Membrane Into Microdevice

Cited by 6 publications

References 25 publications

Enhanced Piezoelectric Coefficient of PVDF-TrFE Films via In Situ Polarization

Enhanced Piezoelectric Coefficient of PVDF-TrFE Films via In Situ Polarization

Reaching High Piezoelectric Performance with Rotating Directional‐Field‐Aligned PVDF–MoS2 Piezo‐Polymer Applicable for Large‐Area Flexible Electronics

Fast and versatile electrostatic disc microprinting for piezoelectric elements

Contact Info

Product

Resources

About

Reaching High Piezoelectric Performance with Rotating Directional‐Field‐Aligned PVDF–MoS₂ Piezo‐Polymer Applicable for Large‐Area Flexible Electronics