Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing

Jiang, Yonggang; Gong, Longlong; Hu, Xiaohe; Zhao, Yong; Chen, Huawei; Feng, Lin; Zhang, Deyuan

doi:10.3390/polym10040364

Cited by 59 publications

(52 citation statements)

References 48 publications

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“…c) Scheme of an electrospinning setup with a flat collector (left image, reproduced under the terms of the CC‐BY license, https://creativecommons.org/licenses/by/3.0/# . Copyright 2015, IOP Publishing) and a rotating‐drum collector (right image, reproduced under the terms of the CC‐BY license, https://creativecommons.org/licenses/by/3.0/# . Copyright 2018, The Authors, published by MDPI).…”

Section: Fabrication Technologies For Light‐emitting Nws and Nfsmentioning

confidence: 99%

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Laser Systems and Networks with Organic Nanowires and Nanofibers

Matino

Persano

Camposeo

et al. 2019

Advanced Optical Materials

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The potentialities of miniaturized laser sources are still far from being fully developed. Unprecedented opportunities are generated in this field by organic nanowires and nanofibers, which can be used as building blocks of micro‐ and nanolasers in which they combine optical gain, waveguiding, and very high versatility to create nanophotonic networks. The progress in laser devices and network architectures based on optically pumped organic light‐emitting nanowires and nanofibers is here presented, with emphasis on developed active materials, fabrication technologies, lasing mechanisms, and cavity geometries, and on achieved device performance in terms of spectral tunability, excitation threshold, and resonator quality factors. Recent examples of optical coupling of different miniaturized lasers, of their application in optical sensing, and of network lasers are presented. Future directions for research are also outlined, which include the exploration of new classes of active organic or hybrid materials within nanowires, the more in‐depth characterization of the fundamental properties of these lasers, and the use of topologically defined organic nanophotonics in network science, computing, and diagnostics.

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Section: Fabrication Technologies For Light‐emitting Nws and Nfsmentioning

confidence: 99%

“…In order to obtain longer and flexible polymer NFs, the electrospinning technique (Figure c) is likely the most widely used today . In electrospinning, a polymer solution is ejected from a spinneret toward a collecting surface through an applied electric field (e.g., ≈10 4 V m −1 ).…”

Section: Fabrication Technologies For Light‐emitting Nws and Nfsmentioning

confidence: 99%

Laser Systems and Networks with Organic Nanowires and Nanofibers

Matino

Persano

Camposeo

et al. 2019

Advanced Optical Materials

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“…The pillar transmitted the flow field-generated force induced by the dipole vibration to the nanofiber mat. The nanofiber mat is more sensitive to the strain in the fiber alignment direction [36]. However, when the sensor was positioned at 0 • and 180 • , the fiber orientation may not be exactly the same as the vibration direction of the dipole.…”

Section: Directivity Measurement Of the Havsmentioning

confidence: 99%

“…The piezoelectricity of the PVDF-based polymers can be improved by incorporating inorganic materials such as ZnO, PZT, barium titanate (BTO), graphene and gold nanoparticles (AuNPs) [31][32][33][34][35]. Moreover, electrospinning is an effective way to obtain highly aligned piezoelectric nanofibers with anisotropic piezoelectricity [36]. In this paper, a hydrodynamic artificial velocity sensor (HAVS) was introduced, mimicking the LLS of fish.…”

Section: Introductionmentioning

confidence: 99%

Bio-inspired Flexible Lateral Line Sensor Based on P(VDF-TrFE)/BTO Nanofiber Mat for Hydrodynamic Perception

Hu¹,

Jiang²,

Ma³

et al. 2019

Sensors

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Fish and some amphibians can perform a variety of behaviors in confined and harsh environments by employing an extraordinary mechanosensory organ, the lateral line system (LLS). Inspired by the form-function of the LLS, a hydrodynamic artificial velocity sensor (HAVS) was presented in this paper. The sensors featured a polarized poly (vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)]/barium titanate (BTO) electrospinning nanofiber mat as the sensing layer, a polyimide (PI) film with arrays of circular cavities as the substrate, and a poly(methyl methacrylate) (PMMA) pillar as the cilium. The P(VDF-TrFE)/BTO electrospinning nanofiber mat demonstrated enhanced crystallinity and piezoelectricity compared with the pure P(VDF-TrFE) nanofiber mat. A dipole source was employed to characterize the sensing performance of the fabricated HAVS. The HAVS achieved a velocity detection limit of 0.23 mm/s, superior to the conventional nanofiber mat-based flow sensor. In addition, directivity was feasible for the HAVS, which was in accordance with the simulation results. The proposed bio-inspired flexible lateral line sensor with hydrodynamic perception ability shows promising applications in underwater robotics for real-time flow analysis.

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“…Piezoelectric polymers have been widely used in sensors, actuators, electronic information and intelligent structures because of its great force-electric coupling characteristics [1][2][3][4][5][6]. The piezoelectric polymers usually participate in the work of piezoelectric instruments in the form of piezoelectric sheets which usually are simplified to a piezoelectric cantilever beam [7][8][9].The problems of piezoelectric cantilever beams are usually difficult to be solved analytically due to the existence of the force-electric coupling constitutive relation.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Parameter Perturbation Solution and Experimental Verification for Bending Problem of Piezoelectric Cantilever Beams

Yang

Jing

et al. 2019

Polymers

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The existing studies indicate that the application of piezoelectric polymers is becoming more and more extensive, especially in the analysis and design of sensors or actuators, but the problems of piezoelectric structure are usually difficult to solve analytically due to the force–electric coupling characteristics. In this study, the bending problem of a piezoelectric cantilever beam was investigated via theoretical and experimental methods. First, the governing equations of the problem were established and non-dimensionalized. Three piezoelectric parameters were selected as perturbation parameters and the perturbation solution of the equations was finally obtained using a multi-parameter perturbation method. In addition, the relevant experiments of the piezoelectric cantilever beam were carried out, and the experimental results were in good agreement with the theoretical solutions. Based on the experimental results, the effect of piezoelectric properties on the bending deformation of piezoelectric cantilever beams was analyzed and discussed. The results indicated that the multi-parameter perturbation solution obtained in this study is effective and it may serve as a theoretical reference for the design of sensors or actuators made of piezoelectric polymers.

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Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing

Cited by 59 publications

References 48 publications

Laser Systems and Networks with Organic Nanowires and Nanofibers

Laser Systems and Networks with Organic Nanowires and Nanofibers

Bio-inspired Flexible Lateral Line Sensor Based on P(VDF-TrFE)/BTO Nanofiber Mat for Hydrodynamic Perception

A Multi-Parameter Perturbation Solution and Experimental Verification for Bending Problem of Piezoelectric Cantilever Beams

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