Results 31 to 40 of about 115,547 (183)

Control of a multi-degree of freedom worktool for vibrations assisted forging [PDF]

open access: yes, 2014
This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds.
AMBERG, Michel   +12 more
core   +1 more source

Bifunctional NiFe LDH as a piezoelectric nanogenerator and asymmetric pseudo-supercapacitor

open access: yes, 2022
Herein, a lead-free nickel-iron layered-double hydroxide (NiFe LDH)-based piezoelectric nanomaterial is used to fabricate a self-powered unit based on a piezoelectric nanogenerator and high-performance asymmetric supercapacitor (ASC). XRD analysis of the
Gunasekaran, Sivagaami Sundari   +2 more
core   +1 more source

A collision-free gallop-based triboelectric-piezoelectric hybrid nanogenerator

open access: yesiScience, 2022
Summary: Energy harvesting technologies that convert fluid energy into usable electrical energy are of great significance, especially in long-distance pipeline systems.
Weizhe Wang, Wei Tang, Zhaohui Yao
doaj   +1 more source

nanogenerator

open access: yes, 2022
The piezoelectric vibration energy harvesting performance of an electrospun poly(vinylidene fluoride) (PVDF)/Barium Titanate (BaTiO3) nanocomposite piezo polymer nanogenerator was investigated in this study.
Kasım, Hasan   +5 more
core   +1 more source

Strong tribo-piezoelectric effect in bilayer indium nitride (InN)

open access: yesScientific Reports, 2021
The high electronegativity between the atoms of two-dimensional (2D) group-III nitrides makes them attractive to demonstrating a strong out-of-plane piezo-electricity effect.
Md. Sherajul Islam   +4 more
doaj   +1 more source

Output increasing methods for polyvinylidene fluoride based nanogenerators

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
PVDF is a piezoelectric polymer with inexpensive, high mechanical, and excellent piezoelectric properties. Due to high piezoelectiric effect of PVDF nanofibers, the focus of the researches is on them.
Sedigheh Aghayari
doaj   +1 more source

Flexible piezoelectric nanogenerator based on [P(VDF-HFP)]/ PANI-ZnS electrospun nanofibers for electrical energy harvesting [PDF]

open access: yes, 2021
: Over the past decade, piezoelectric nanogenerator have attracted much attention to harvest mechanical energy from abundant resources in nature.
Bhadra, Jolly   +2 more
core   +1 more source

A Hybrid Piezoelectric Structure for Wearable Nanogenerators

open access: yesAdvanced Materials, 2012
A hybrid-fiber nanogenerator comprising a ZnO nanowire array, PVDF polymer and two electrodes is presented. Depending on the bending or spreading action of the human arm, at an angle of ∼90°, the hybrid fiber reaches electrical outputs of ∼0.1 V and ∼10 nA cm(-2) .
Lee, M   +8 more
openaire   +3 more sources

Mechanically Bent Graphene as an Effective Piezoelectric Nanogenerator [PDF]

open access: yesThe Journal of Physical Chemistry C, 2018
Recent density functional theory (DFT) calculations have demonstrated the potential of mechanically bent graphene as a piezoelectric energy harvesting material.
L. Duggen, M. Willatzen, Z. L. Wang
openaire   +2 more sources

Piezoelectric Nanogenerator Based on Lead-Free Flexible PVDF-Barium Titanate Composite Films for Driving Low Power Electronics

open access: yesCrystals, 2021
Self-powered sensor development is moving towards miniaturization and requires a suitable power source for its operation. The piezoelectric nanogenerator (PENG) is a potential candidate to act as a partial solution to suppress the burgeoning energy ...
Manisha Sahu   +5 more
doaj   +1 more source

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