ZnO Nanoparticle Confined Stress Amplified All-Fiber Piezoelectric Nanogenerator for Self-powered Healthcare Monitoring

2021 ◽  
Author(s):  
Biswajit Mahanty ◽  
Sujoy Kumar Ghosh ◽  
Santanu Jana ◽  
Zinnia Mallick ◽  
Subrata Sarkar ◽  
...  
Keyword(s):  
Active Layer ◽  
Zno Nanoparticles ◽  
Vinylidene Fluoride ◽  
Electrospun Nanofibers ◽  
Zno Nanoparticle ◽  
Poly Vinylidene Fluoride ◽  
Healthcare Monitoring ◽  
Self Powered

In this work, an all-fiber piezoelectric nanogenerator (A-PNG) is designed by ZnO nanoparticles (NPs) reinforced poly(vinylidene fluoride) (PVDF) electrospun nanofibers as the active layer and interlocked conducting microfiber consisting mats...

scholarly journals All-Fiber Pyro- and Piezo-electric Nanogenerator for IoT Based Self-Powered Health-Care Monitoring

2021 ◽  
Author(s):  
Biswajit Mahanty ◽  
Sujoy Kumar Ghosh ◽  
Kuntal Maity ◽  
KRITTISH ROY ◽  
Subrata Sarkar ◽  
...  
Keyword(s):  
Health Care ◽  
Carbon Nanotube ◽  
Vinylidene Fluoride ◽  
Electrospun Nanofibers ◽  
Multiwall Carbon Nanotube ◽  
Poly Vinylidene Fluoride ◽  
Self Powered ◽  
Health Care Monitoring ◽  
Multiwall Carbon ◽  
Piezo Electric

In this work, an all-fiber pyro- and piezo-electric nanogenerator (PPNG) is designed by multiwall carbon nanotube (MWCNT) doped poly(vinylidene fluoride) (PVDF) electrospun nanofibers as the active layer and interlocked conducting...

scholarly journals Development of In-Situ Poled Nanofiber Based Flexible Piezoelectric Nanogenerators for Self-Powered Motion Monitoring

2020 ◽  
Vol 10 (10) ◽  
pp. 3493
Author(s):  
Minjung Kim ◽  
Vignesh Krishnamoorthi Kaliannagounder ◽  
Afeesh Rajan Unnithan ◽  
Chan Hee Park ◽  
Cheol Sang Kim ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Implantable Devices ◽  
The Past ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
High Bias ◽  
Self Powered ◽  
Increasing Demand ◽  
Piezoelectric Nanogenerators

Energy harvesting technologies have found significant importance over the past decades due to the increasing demand of energy and self-powered design of electronic and implantable devices. Herein, we demonstrate the design and application of in situ poled highly flexible piezoelectric poly vinylidene fluoride (PVDF) graphene oxide (GO) hybrid nanofibers in aligned mode for multifaceted applications from locomotion sensors to self-powered motion monitoring. Here we exploited the simplest and most versatile method, called electrospinning, to fabricate the in situ poled nanofibers by transforming non-polar α-phase of PVDF to polar β- phase structures for enhanced piezoelectricity under high bias voltage. The flexible piezoelectric device fabricated using the aligned mode generates an improved output voltage of 2.1 V at a uniform force of 12 N. The effective piezoelectric transduction exhibited by the proposed system was tested for its multiple efficacies as a locomotion detector, bio-e-skin, smart chairs and so on.

Self-powered graphene quantum dot/poly(vinylidene fluoride) composites with remarkably enhanced mechanical-to-electrical conversion

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67400-67408 ◽  
Author(s):  
Chong Lu ◽  
Lei Zhang ◽  
Chenwen Xu ◽  
Zhenzhong Yin ◽  
Shaobing Zhou ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Vinylidene Fluoride ◽  
Polymer Matrix Composite ◽  
Graphene Quantum Dot ◽  
Piezoelectric Polymer ◽  
Poly Vinylidene Fluoride ◽  
Self Powered

A self-powered piezoelectric polymer matrix composite, with remarkably enhanced mechanical-to-electrical conversion, was fabricated without any treatment of electrical poling.

Perovskite methylammonium lead bromide incorporated poly(vinylidene fluoride) composite for flexible cantilever based self-powered vibration sensor

2019 ◽  
Vol 6 (11) ◽  
pp. 115709
Author(s):  
Ayesha Sultana ◽  
Md Mehebub Alam ◽  
Krittish Roy ◽  
Priyabrata Sadhukhan ◽  
Sachindranath Das ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Vibration Sensor ◽  
Lead Bromide ◽  
Poly Vinylidene Fluoride ◽  
Self Powered

Residual Charges during Electrospinning Assist in Formation of Piezoelectricity in Poly(Vinylidene Fluoride-co-Trifluoroethylene) Nanofibers

2015 ◽  
Vol 37 ◽  
pp. 13-19 ◽  
Author(s):  
A Young Choi ◽  
Hyeon Jun Sim ◽  
Min Kyoon Shin ◽  
Seon Jeong Kim ◽  
Youn Tae Kim
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Vinylidene Fluoride ◽  
Near Field ◽  
Electrospun Nanofibers ◽  
Electrospinning Process ◽  
Local Electric Field ◽  
Output Measurement ◽  
Poly Vinylidene Fluoride

We confirm piezoelectric performance of bottom electrospun PVDF-TrFE mat is higher than that of top mat and report the mechanism of additional poling process of electrospun nanofibers by local electric field which is originating from residual charges in far-field electrospinning process. Piezoelectric output measurement of poly (vinylidene fluoride-co-trifluoroethylene) electrospun nanofibers was performed by push test and output signals of bottom and top were compared. The local electric field strength calculated by simulation was higher than reported electric field strength of near-field electrospinning (10 MV/m). It can be concluded that the piezoelectric outputs of electrospun nanofibers tend to be improved by residual charge density and electrospinning condition.

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