Flexible piezoelectric pressure sensor based on polydopamine-modified BaTiO3/PVDF composite film for human motion monitoring

Yang, Yuanwang; Pan, Hong; Xie, Guangzhong; Jiang, Yadong; Chen, Chunxu; Su, Yuanjie; Wang, Yang; Tai, Huiling

doi:10.1016/j.sna.2019.111789

Cited by 325 publications

(205 citation statements)

References 47 publications

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“…Diani et al fabricated PVDF film with a high porosity, which resulted in improved ionic conductivity of the material. However, due to the low piezoelectric coefficient, pristine casted PVDF has a low content of β-phase [ 49 , 50 , 51 , 52 ]. Horibe et al, in their work, established that the crystalline structure of the PVDF resulting from solvent casting is predominantly determined by the solvent evaporation rate [ 53 ].…”

Section: Piezoelectric Pvdfmentioning

confidence: 99%

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

Kalimuldina

Turdakyn

Abay

et al. 2020

Sensors

233

124

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With the increase of interest in the application of piezoelectric polyvinylidene fluoride (PVDF) in nanogenerators (NGs), sensors, and microdevices, the most efficient and suitable methods of their synthesis are being pursued. Electrospinning is an effective method to prepare higher content β-phase PVDF nanofiber films without additional high voltage poling or mechanical stretching, and thus, it is considered an economically viable and relatively simple method. This work discusses the parameters affecting the preparation of the desired phase of the PVDF film with a higher electrical output. The design and selection of optimum preparation conditions such as solution concentration, solvents, the molecular weight of PVDF, and others lead to electrical properties and performance enhancement in the NG, sensor, and other applications. Additionally, the effect of the nanoparticle additives that showed efficient improvements in the PVDF films was discussed as well. For instance, additives of BaTiO3, carbon nanotubes, graphene, nanoclays, and others are summarized to show their contributions to the higher piezo response in the electrospun PVDF. The recently reported applications of electrospun PVDF films are also analyzed in this review paper.

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Section: Piezoelectric Pvdfmentioning

confidence: 99%

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

Kalimuldina

Turdakyn

Abay

et al. 2020

Sensors

233

124

View full text Add to dashboard Cite

show abstract

“…sensor have attracted increasing attention in recent years. [167,168] Hosseini et al fabricated a flexible piezoelectric pressure sensor based on biodegradable glycine and chitosan piezoelectric films (Figure 11c). [169] The β-glyine/chitosan (β-Gly/CS)-based pressure sensor could produce an output voltage of 190 mV under 60 kPa pressure with a sensitivity of 2.82 ± 0.2 mV kPa −1 (Figure 11d).…”

Section: Power Consumptionmentioning

confidence: 99%

Flexible Pressure Sensors for Biomedical Applications: From Ex Vivo to In Vivo

Zheng

Chen

et al. 2020

Adv Materials Inter

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As an important branch of flexible electronics, flexible pressure sensors that combine unique advantages including light weight, flexibility, and low‐cost, have drawn extensive attention owing to their great potential for biomedical applications. In this review, the current state‐of‐the‐art flexible pressure sensors concerning common substrate and active materials, sensing mechanism, key parameters, sensitivity optimization strategies, and promising biomedical applications from ex vivo to in vivo and which results in the distinct requirements of materials and structure design is briefly reviewed. Finally, perspectives on the potential challenges of flexible pressure sensors are provided.

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“…Doping with a piezoelectric polymer can stimulate the piezoelectric properties. Recently, Yang et al [123] modified barium titanate (BTO) with polydopamine (PDA). Then, the mixing ratio was adjusted between it and the PVDF matrix, and finally formed a uniform and homogeneous PDA @ BTO / PVDF composite material.…”

Section: Biomaterials Functional Pvdfmentioning

confidence: 99%

“…This confirmed that it was possible to fabricate low-cost and lightweight electronic devices with reduced quantities of metal oxides and pressure sensing devices. between temperature and recovery time [94]; (e) Generated output voltages, output currents, output powers by Finger bending, knee and elbow movements [144]; (f) Pressure sensor embedded in the bottom of the insole or stuck on human arm and voltage generated by jumping, walking, running and different bending angles' elbows [123].…”

Section: Physical Sensorsmentioning

confidence: 99%

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

Guo

Duan

Xie

et al. 2020

Preprint

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The technological development of piezoelectric materials is crucial for developing wearable and flexible electromechanical devices. There are many inorganic materials with piezoelectric effects, such as piezoelectric ceramics, aluminum nitride, and zinc oxide. They all have very high piezoelectric coefficients and large piezoelectric response ranges. The characteristics of high hardness and low tenacity make inorganic piezoelectric materials unsuitable for flexible devices that require frequent bending. Polyvinylidene fluoride (PVDF) and its derivatives are the most popular materials used in flexible electromechanical devices in recent years and have high flexibility, high sensitivity, high ductility, and a certain piezoelectric coefficient. Owing to increasing the piezoelectric coefficient of PVDF, researchers are committed to optimizing PVDF materials and enhancing their polarity by a series of means to further improve their mechanical–electrical conversion efficiency. This paper reviews the latest PVDF-related optimization materials, related processing and polarization methods, and the applications of these materials such as those in wearable functional devices, chemical sensors, biosensors, and flexible actuator devices for flexible micro-electromechanical devices. We also discuss the challenges of wearable devices based on flexible piezoelectric polymer, consider where further practical applications could be.

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Flexible piezoelectric pressure sensor based on polydopamine-modified BaTiO3/PVDF composite film for human motion monitoring

Cited by 325 publications

References 47 publications

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

Flexible Pressure Sensors for Biomedical Applications: From Ex Vivo to In Vivo

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

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