Results 181 to 190 of about 21,753 (204)

Multifunctional fluorescent nanocomposite of PVDF-TrFE and europium barium titanate

Journal of Applied Physics, 2023
Polyvinylidene difluoride trifluoroethylene (PVDF-TrFE) has received widespread application in flexible electronics and biomedical devices but is limited in its sensing modalities to piezoelectricity and pyroelectricity. The addition of optically or magnetically active nanoparticles could provide additional sensing modalities in the same element, which
Christine K. McGinn, Nasim Farahmand, Stephen O’Brien, Ioannis Kymissis   +3 more
openaire   +1 more source

Enhanced Piezoelectricity of PVDF-TrFE Nanofibers by Intercalating with Electrosprayed BaTiO₃

ACS Applied Materials & Interfaces, 2023
Over the past few decades, flexible piezoelectric devices have gained increasing interest due to their wide applications as wearable sensors and energy harvesters. Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE), as one of piezoelectric polymers, has caught considerable attention because of its high flexibility, high thermal stability, and ...
Sheyda Mirjalali, Roohollah Bagherzadeh, Arezo Mahdavi Varposhti, Mohsen Asadnia, Shujuan Huang, Wenkai Chang, Shuhua Peng, Chun-Hui Wang, Shuying Wu   +8 more
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Micromechanical properties of electron irradiated PVDF-TrFE copolymers

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1990
Abstract Micromechanical spectroscopy is a sensitive probe of phase transitions occurring in semicrystalline polymers. We used this approach to investigate the effect of irradiation on phase transitions in ferroelectric PVDF-TrFE copolymers. It appears that the glass-rubber transition and the Curie transition are both affected by bombardment with ...
F. Macchi, B. Daudin, J. Hillairet, J. Lauzier, J.B. N'Goma, J.Y. Cavaille, J.F. Legrand   +6 more
openaire   +1 more source

Electrospun PVDF-TrFE-Based Piezoelectric Sensors

2016
In this chapter, our aim is to explore the latest developments that use electrospun poly(vinylidene uoride-triuoroethylene) (PVDF-TrFE) nanoweb bers in fabrication of stretchable/exible piezoelectric sensors. e discussion will focus on the electrospinning parameters, morphological, spectral, and electrical properties of PVDF-TrFE nanoweb ber and its ...
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Flexible piezoelectric nanogenerators based on PVDF-TrFE nanofibers

The European Physical Journal Applied Physics, 2017
In this paper, electrospun piezoelectric PVDF-TrFE nanofibers were used for the fabrication of two types of flexible nanogenerator (NG) devices based on the direct piezoelectric effect, allowing the conversion of mechanical energy into electrical energy.
Serairi, Linda, Gu, Long, Qin, Yong, Lu, Yingxian, Basset, Philippe, Leprince-Wang, Yamin   +5 more
openaire   +1 more source

Nonlinear dielectric permittivity of PT/PVDF-TrFE composites

Ferroelectrics, 2001
Abstract The nonlinear dielectric permittivities of 0–3 composite films of lead titanate (PT) nanoparticles in 56/44 mol % polyvinylidenefluoride trifluoroethylene (PVDF-TrFE) with 0.08 and 0.27 ceramic volume fractions and with various polarization states (only the matrix or the inclusions polarized, or the two phases polarized in parallel or ...
Bernd Ploss, Beatrix Ploss, F. G. Shin, H. L.W. Chan, C. L. Choy   +4 more
openaire   +1 more source

Different Scale Confinements of PVDF-TrFE as Functional Material of Piezoelectric Devices

IEEE Sensors Journal, 2013
In this paper, we report on the effect of micro- and nano-structuration on the piezoelectric properties of polymeric samples. We prepare micro-sized pillars and nano-wires (thus 1-D structures) of a piezoelectric polymer Poly(VinyliDene Fluoride-Tri FluoroEthylene) PVDF-TrFE and we compare their structural and piezoelectrical properties with a thin ...
CANAVESE, GIANCARLO, STASSI, STEFANO, CAUDA, Valentina Alice, VERNA, ALESSIO, MOTTO, PAOLO, Angelica Chiodoni, MARASSO, SIMONE LUIGI, DEMARCHI, DANILO   +7 more
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Characteristics of Metal/Ferroelectric (PVDF-TrFE)/Graphene (MFG) device

2012 IEEE Silicon Nanoelectronics Workshop (SNW), 2012
Characteristics of new reconfigurable graphene device with Metal/ Ferroelectric (PVDF-TrFE)/Graphene (MFG) stack is presented. Key features include programming speed < 100nsec, retention up to 1000sec, endurance upto 1000 cycles and more than 775% on/off ratio.
H.J. Hwang, E.J. Paek, J.H. Yang, C.G. Kang, B.H. Lee   +4 more
openaire   +1 more source

MEMS Scale PVDF-TrFE-Based Piezoelectric Energy Harvesters

Journal of Microelectromechanical Systems, 2015
This paper presents the design, the fabrication, and the performance characterization of microelectromechanical systems (MEMS) scale cantilever-type piezoelectric energy harvesters (PEHs) that utilize the piezoelectric polymer polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE).
Alperen Toprak, Onur Tigli
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An electrospun PVDF-TrFe fiber sensor platform for biological applications

Sensors and Actuators A: Physical, 2015
Abstract Flexible, self-powered materials are in demand for a multitude of applications such as energy harvesting, robotic devices, and lab-on-a chip medical diagnostics. Electrospinning piezoelectric fluoropolymers into nanofibers can provide these functionalities in a facile method. PVDF-TrFe was electrospun in an aligned format and interfaced with
Laura T. Beringer, Xin Xu, Wan Shih, Wei-Heng Shih, Raymond Habas, Caroline L. Schauer   +5 more
openaire   +1 more source