Lanthanum-modified lead zirconate titanate based paint for sensor and energy harvesting applications

2018 ◽  
Vol 29 (24) ◽  
pp. 20931-20941 ◽  
Author(s):  
Bir B. Bohara ◽  
Ashok K. Batra ◽  
C. R. Bowen
Keyword(s):  
Energy Harvesting ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate

An experimental study on piezoelectric energy harvesting from wind and ambient structural vibrations for wireless structural health monitoring

2019 ◽  
Vol 23 (5) ◽  
pp. 1010-1023 ◽  
Author(s):  
Naveet Kaur ◽  
Dasari Mahesh ◽  
Sreenitya Singamsetty
Keyword(s):  
Structural Health Monitoring ◽  
Energy Harvesting ◽  
Lead Zirconate Titanate ◽  
Health Monitoring ◽  
Lead Zirconate ◽  
Piezoelectric Energy Harvesting ◽  
Structural Vibrations ◽  
Ambient Wind ◽  
Piezoelectric Energy ◽  
Zirconate Titanate

Energy harvesting is an emerging technology holding promise of sustainability amid the alarming rate at which the human community is depleting the natural resources to cater its needs. There are several ways of harvesting energy in a renewable fashion such as through solar, wind, hydro-electric, geothermal, and artificial photosynthesis. This study focuses on energy harvesting from wind vibrations and ambient structural vibrations (such as from rail and road bridges) through piezo transducers using the direct piezoelectric effect. First, the potential of the piezoelectric energy harvesting from ambient wind vibrations has been investigated and presented here. Lead zirconate titanate patches have been attached at the fixed end of aluminum rectangular and trapezoidal cantilevers, which have been exposed to varying wind velocity in a lab-size wind tunnel. The effect of perforations and twisting (distortion) on the power generated by the patches under varying wind velocity has also been studied. It has been observed that the power is comparatively higher in rectangular-shaped cantilever than the trapezoidal one. Perforations and shape distortion showed promising result in terms of higher yield. The laboratory experiments have also been extended to the real-life field condition to measure the actual power generated by the lead zirconate titanate patches under the ambient wind vibrations. Next, energy harvesting from the ambient structural vibrations has been done both experimentally and numerically. Four different prototypes have been considered. The power has been measured across the lead zirconate titanate patches individually and in parallel combination. A maximum power output for Prototype 1 to Prototype 4 has been found to be 4.3428, 11.844, 25.97, and 43.12 µW, respectively. Numerical study has also been carried out in ANSYS 14.5 to perform the parametric study to examine the effect of addition of mass at the free end of cantilever. In a nutshell, this article provides a comprehensive study on the effect of various factors on the amount of energy generated by piezoelectric patches under wind and structural vibrations. The energy generated is sufficient for driving low-power-consuming electronics that can further be used for other applications like wireless structural health monitoring, and so on.

Mechanical energy harvesting using polyurethane/lead zirconate titanate composites

2017 ◽  
Vol 52 (9) ◽  
pp. 1171-1182 ◽  
Author(s):  
Abdelkader Rjafallah ◽  
Abdelowahed Hajjaji ◽  
Fouad Belhora ◽  
Daniel Guyomar ◽  
Laurence Seveyrat ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Lead Zirconate Titanate ◽  
Microelectromechanical Systems ◽  
Volume Fraction ◽  
Mechanical Energy ◽  
Mechanical Strain ◽  
Lead Zirconate ◽  
Inorganic Materials ◽  
Zirconate Titanate ◽  
Electromechanical Transduction

The microelectromechanical systems invade gradually the market with applications in many sectors of activity. Developing these micro-systems allows deploying wireless sensor networks that are useful to collect, process and transmit information from their environments without human intervention. In order to keep these micro-devices energetically autonomous without using batteries because they have a limited lifespan, an energy harvesting from ambient vibrations using electrostrictive polymers can be used. These polymers present best features against inorganic materials, as flexibility and low cost. The aims of this paper are manifold. First of all, we made elaboration of the polyurethane/lead zirconate titanate films of 100 µm thickness using a lead zirconate titanate–volume fraction of [Formula: see text]%. Therefore, we did an observation of the lead zirconate titanate grains dispersion and the electrical characterization of the polyurethane–50 vol% lead zirconate titanate composites. Finally, a detailed study of the electromechanical transduction, for the polyurethane–50 vol% lead zirconate titanate unpolarized and polarized composites sustained to the sinusoidal mechanical strain with amplitude of 1.5% and at very low frequencies ( f = 2 [Hz] and f = 4 [Hz]) and static electric field ( Edc = 10 [ V/µm]) or without it ( Edc = 0 [ V/µm]) has been presented.

A simple method to characterize the impedance of pyroelectric materials at ultra-low frequencies

2016 ◽  
Vol 28 (2) ◽  
pp. 143-153 ◽  
Author(s):  
Murtadha A Shaheen ◽  
Ugur Erturun ◽  
Brandon Campbell ◽  
Karla Mossi
Keyword(s):  
Energy Harvesting ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Simple Method ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Polyvinylidene Difluoride ◽  
Filter Technique ◽  
Zirconate Titanate ◽  
Low Pass

The purpose of this work is to demonstrate a new simple stand-alone method of characterizing the impedance of a pyroelectric cell. This method utilizes a pyroelectric single pole low-pass filter technique. Utilizing the properties of a pyroelectric single pole low-pass filter technique, a known input voltage is applied and using simple equations, capacitance Cp and resistance Rp at a frequency range of 1 mHz to 1 Hz can be calculated. For verification purposes, an LCR meter and an impedance analyzer were exploited at 10 and 100 Hz, respectively. Results showed that Rp values for two materials, lead zirconate titanate-5A and polyvinylidene difluoride, were within 8%, and Cp values were within 7.5%. In addition, to verify the importance of the impedance values in energy harvesting applications, output power was measured with varying impedance values. The optimal load resistances for polyvinylidene difluoride and lead zirconate titanate-5A were consistent with the measured pyroelectric impedance at the particular heat range with 10.9% and 1.4%, respectively. The pyroelectric single pole low-pass filter method presented here demonstrates that for pyroelectric materials the impedance depends on two major factors: (1) average working temperature and (2) the heating rate. Neglecting these two factors can result in inefficient and unpredictable behavior of pyroelectric materials when used in energy harvesting applications.

Lead Zirconate Titanate Nanowire Textile Nanogenerator for Wearable Energy-Harvesting and Self-Powered Devices

ACS Nano ◽  
2012 ◽  
Vol 6 (7) ◽  
pp. 6231-6235 ◽  
Author(s):  
Weiwei Wu ◽  
Suo Bai ◽  
Miaomiao Yuan ◽  
Yong Qin ◽  
Zhong Lin Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Self Powered

Pyroelectric effect in lead zirconate titanate/polyurethane composite for thermal energy harvesting

2019 ◽  
Vol 86 (1) ◽  
pp. 10902 ◽  
Author(s):  
Yassine Tabbai ◽  
Fouad Belhora ◽  
Reddad El Moznine ◽  
Abdelowahed Hajjaji ◽  
Abdessamad El Ballouti
Keyword(s):  
Energy Harvesting ◽  
Energy Conversion ◽  
Lead Zirconate Titanate ◽  
Thermal Energy ◽  
Mechanical Energy ◽  
Lead Zirconate ◽  
Pyroelectric Effect ◽  
Polyurethane Composite ◽  
Zirconate Titanate ◽  
Harvesting Systems

We deal with the thermal energy which is one of the ambient energy sources surely exploitable, but it has not been much interest as the mechanical energy. In the last decades, direct energy conversion devices received particular attention because of the need to develop flexible systems, autonomous and self-powered. The energy harvesting aims to make the systems, autonomous in terms of energy and to contribute to sustainable development by the total respect of the environment. In this paper, our aim is to use thermal energy and show that it's an important source for producing the electrical energy through pyroelectric effect: first, elaborate charged polyurethane (PU) with different proportions (20%, 30% and 40%) of lead zirconate titanate (PZT), then to use those PZT/PU composites as a pyroelectric energy harvesting systems. Secondly, the optimization of energy harvesting and storage. The PZT/PU composite prepared is considered as one of the most promising composites for energy harvesting systems, due its various advantages, such as mechanical flexibility, high temperature sensitivity, low cost as well as its high electro-active functional properties. The current generated by all samples for temperature fluctuations over a period of time in the order of 140 s have been rectified and stored in a charge capacitor of 1μF. The stored energy can reach a maximum value in the order of 14μW for a composite loaded with 40% PZT. Therefore, these composites show an interesting potential to be used in various applications. These results shed light on the thermoelectric energy conversion by a new composite of PZT/PU having the pyroelectric property.

Multifunctional composite nanofibers with shape memory and piezoelectric properties for energy harvesting

2020 ◽  
Vol 31 (7) ◽  
pp. 956-966 ◽  
Author(s):  
Xiaoyu Guan ◽  
Hairong Chen ◽  
Hong Xia ◽  
Yaqin Fu ◽  
Yiping Qiu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Shape Memory ◽  
Lead Zirconate Titanate ◽  
Composite Nanofibers ◽  
Piezoelectric Materials ◽  
Lead Zirconate ◽  
Silane Coupling Agents ◽  
Zirconate Titanate ◽  
Shape Memory Effects ◽  
Shape Memory Polyurethane

Although many kinds of flexible piezoelectric materials have been developed, there were few reports on flexible multifunctional nanofibers for energy harvesting. In this study, we prepared multifunctional nanofibers from lead zirconate titanate particles and shape memory polyurethane by electrospinning. The resulting nanofibers had both piezoelectric and shape memory effects. To improve the dispersion, lead zirconate titanate particles were modified by silane coupling agents. The lead zirconate titanate/shape memory polyurethane nanofibers were used to harvest energy from sinusoidal vibrations, and the lead zirconate titanate 80 wt% sample produced voltages of 120.3 mV (peak-to-peak). Taking advantage of the shape memory effect, the lead zirconate titanate/shape memory polyurethane nanofibers can be easily deformed into desired shapes and revealed the potential for realizing energy harvesting in complex structures.

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