Infrared-driven poly(vinylidene difluoride)/tungsten oxide pyroelectric generator for non-contact energy harvesting

2019 ◽  
Vol 178 ◽  
pp. 26-32 ◽  
Author(s):  
Chang-Mou Wu ◽  
Min-Hui Chou ◽  
Tolesa Fita Chala ◽  
Yoshinobu Shimamura ◽  
Ri-ichi Murakami
Keyword(s):  
Energy Harvesting ◽  
Tungsten Oxide ◽  
Vinylidene Difluoride

scholarly journals Ferroelectric P(VDF-TrFE)/POSS nanocomposite films: compatibility, piezoelectricity, energy harvesting performance, and mechanical and atomic oxygen erosion

RSC Advances ◽  
2020 ◽  
Vol 10 (29) ◽  
pp. 17377-17386 ◽  
Author(s):  
Y. Z. Liu ◽  
H. Zhang ◽  
J. X. Yu ◽  
Z. Y. Huang ◽  
C. Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Atomic Oxygen ◽  
Piezoelectric Coefficient ◽  
Nanocomposite Films ◽  
Vinylidene Difluoride ◽  
Atomic Oxygen Erosion

Poly(vinylidene difluoride) (PVDF) and its copolymers as the polymers with the highest piezoelectric coefficient have been widely used as sensors and generators.

Phase transformation of poly (vinylidene difluoride) in energy harvesting

2011 ◽  
Vol 26 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Hong Liang ◽  
Rodrigo Cooper ◽  
Jason Files
Keyword(s):  
Phase Transformation ◽  
Energy Harvesting ◽  
Vinylidene Difluoride ◽  
Image Position

Abstract

Laser fabricated tungsten oxide surface for solar energy harvesting and dust effects

2019 ◽  
Vol 191 ◽  
pp. 190-198 ◽  
Author(s):  
Bekir S. Yilbas ◽  
Haider Ali ◽  
Abdullah Al-Sharafi ◽  
C. Karatas
Keyword(s):  
Energy Harvesting ◽  
Solar Energy ◽  
Tungsten Oxide ◽  
Oxide Surface ◽  
Solar Energy Harvesting ◽  
Dust Effects

Analysis of magneto rheological elastomers for energy harvesting systems

2020 ◽  
Vol 64 (1-4) ◽  
pp. 439-446
Author(s):  
Gildas Diguet ◽  
Gael Sebald ◽  
Masami Nakano ◽  
Mickaël Lallart ◽  
Jean-Yves Cavaillé
Keyword(s):  
Magnetic Field ◽  
Energy Harvesting ◽  
Shear Strain ◽  
Magnetic Induction ◽  
Magnetic Particles ◽  
Homogeneous Magnetic Field ◽  
Electrical Signal ◽  
Harvesting Systems ◽  
Dc Bias ◽  
Magneto Rheological

Magneto Rheological Elastomers (MREs) are composite materials based on an elastomer filled by magnetic particles. Anisotropic MRE can be easily manufactured by curing the material under homogeneous magnetic field which creates column of particles. The magnetic and elastic properties are actually coupled making these MREs suitable for energy conversion. From these remarkable properties, an energy harvesting device is considered through the application of a DC bias magnetic induction on two MREs as a metal piece is applying an AC shear strain on them. Such strain therefore changes the permeabilities of the elastomers, hence generating an AC magnetic induction which can be converted into AC electrical signal with the help of a coil. The device is simulated with a Finite Element Method software to examine the effect of the MRE parameters, the DC bias magnetic induction and applied shear strain (amplitude and frequency) on the resulting electrical signal.

Simply supported FPEDs connected by springs for broadband energy harvesting

2020 ◽  
Vol 64 (1-4) ◽  
pp. 201-210
Author(s):  
Yoshikazu Tanaka ◽  
Satoru Odake ◽  
Jun Miyake ◽  
Hidemi Mutsuda ◽  
Atanas A. Popov ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Evaluation Method ◽  
Energy Harvester ◽  
Vibrational Energy ◽  
Functional Materials ◽  
Vibration Energy ◽  
Theoretical Evaluation ◽  
Vibration Energy Harvester ◽  
Polyvinylidene Difluoride ◽  
Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

Energy Harvesting Using Piezoelectric Materials on Microcantilevr Structure

2012 ◽  
Vol 2 (5) ◽  
pp. 252-255
Author(s):  
Rudresha K J Rudresha K J ◽  
◽  
Girisha G K Girisha G K
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Materials
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