scholarly journals Comparative Study of Energy Harvesting from ZnO Nanorods Using Different Flexible Substrates

2014 ◽  
Vol 1 (1-2) ◽  
Author(s):  
Mushtaque Hussain ◽  
Mazhar Ali Abbasi ◽  
Azam Khan ◽  
Omer Nur ◽  
Magnus Willander
Keyword(s):  
Energy Harvesting ◽  
Low Cost ◽  
Flexible Substrate ◽  
Zno Nanorods ◽  
Aluminum Foil ◽  
Electrical Energy ◽  
Flexible Substrates ◽  
Contact Mode ◽  
Promising Alternative ◽  
Textile Fabric

AbstractThe step toward the fabrication of nanodevices with low cost and improved performance is of high demand; therefore, in the present study, different flexible substrates like common paper, textile fabric, plastic and aluminum foil have been utilized to harvest electrical energy. ZnO nanorods (NRs) were grown by using low-temperature aqueous chemical growth method. The obtained ZnO NRs were highly dense, well aligned, uniformly distributed over the substrates and exhibited good crystal quality. The structural study was carried out by using X-ray powder diffraction and scanning electron microscopy. The piezoelectric properties of ZnO NRs were investigated by the help of an atomic force microscope using contact mode. The measurements of generated piezoelectricity were around 16.2 mV, 23.2 mV, 38.5 mV and 43.3 mV for common paper, textile fabric, plastic and aluminum foil, respectively. This investigation is an important step in order to study the effect of different substrates influencing the magnitude of the output voltage under identical growth and measurement conditions. We expect that this study will help identify the most suitable flexible substrate for harvesting energy. It also offers a promising alternative powering source for the next generation nanodevices using non-conventional substrates like aluminum foil. Moreover, the use of aluminum foil as flexible and low cost substrate may pave the way to develop devices in different fields including energy harvesting.

scholarly journals Synthesis of ZnO Nanorod Film Deposited by Spraying with Application for Flexible Piezoelectric Energy Harvesting Microdevices

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6759
Author(s):  
Ernesto A. Elvira-Hernández ◽  
Jorge Romero-García ◽  
Antonio Ledezma-Pérez ◽  
Agustín L. Herrera-May ◽  
Ernesto Hernández-Hernández ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Indium Tin Oxide ◽  
Vibrational Energy ◽  
Low Cost ◽  
Flexible Substrate ◽  
Morphological Characteristics ◽  
Electrical Energy ◽  
Flexible Substrates ◽  
Zno Nanorod ◽  
Piezoelectric Energy

Industry 4.0 and the Internet of Things have significantly increased the use of sensors and electronic products based on flexible substrates, which require electrical energy for their performance. This electrical energy can be supplied by piezoelectric vibrational energy harvesting (pVEH) devices. These devices can convert energy from ambient mechanical excitations into electrical energy. In order to develop, these devices require piezoelectric films fabricated with a simple and low-cost process. In this work, we synthesize ZnO nanorod film by a solvothermal method and deposit by spraying on ITO (indium-tin-oxide)/PET (polyethylene terephthalate) flexible substrate for a pVEH microdevice. The results of the characterization of the ZnO nanorod film using X-ray diffraction (XRD) confirm the typical reflections for this type of nanomaterial (JCPDS 36-145). Based on transmission electron microscopy (TEM) images, the size of the nanorod film is close to 1380 nm, and the average diameter is 221 ± 67 nm. In addition, the morphological characteristics of the ZnO nanorod film are obtained using atomic force microscopy (AFM) tapping images. The pVEH microdevice has a resonant frequency of 37 Hz, a generated voltage and electrical power of 9.12 V and 6.67 μW, respectively, considering a load resistance of 107.7 kΩ and acceleration of 1.5 g. The ZnO nanorod film may be applied to pVEH microdevices with flexible substrates using a low-cost and easy fabrication process.

Comparative Study of Energy Harvesting from ZnO Nanorods Using Different Flexible Substrates

ENERGYO ◽  
2018 ◽  
Author(s):  
Mushtaque Hussain ◽  
Mazhar Ali Abbasi ◽  
Azam Khan ◽  
Omer Nur ◽  
Magnus Willander
Keyword(s):  
Energy Harvesting ◽  
Comparative Study ◽  
Zno Nanorods ◽  
Flexible Substrates

A phosphorus/N-doped carbon nanofiber composite as an anode material for sodium-ion batteries

2015 ◽  
Vol 3 (37) ◽  
pp. 19011-19017 ◽  
Author(s):  
Boyang Ruan ◽  
Jun Wang ◽  
Dongqi Shi ◽  
Yanfei Xu ◽  
Shulei Chou ◽  
...  
Keyword(s):  
Large Scale ◽  
Carbon Nanofiber ◽  
Low Cost ◽  
Lithium Ion ◽  
Electrical Energy ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nanofiber Composite ◽  
Promising Alternative ◽  
Electrical Energy Storage

Sodium-ion batteries (SIBs) have been attracting intensive attention at present as the most promising alternative to lithium-ion batteries in large-scale electrical energy storage applications, due to the low-cost and natural abundance of sodium.

scholarly journals Wide optical gap B-doped nc-Si thin films with advanced crystallinity and conductivity on transparent flexible substrates for potential low-cost flexible electronics including nc-Si superstrate p–i–n solar cells

2021 ◽  
Author(s):  
Debajyoti Das ◽  
Chandralina Patra
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Energy Harvesting ◽  
Flexible Electronics ◽  
Low Cost ◽  
Flexible Substrates ◽  
Light Weight ◽  
Optical Gap ◽  
Roll To Roll ◽  
Energy Harvesting Devices

The current boost in flexible energy harvesting devices demands the fabrication of solar cells on non-rigid, light-weight and cheap substrates to make roll-to-roll processing technology economically viable.

scholarly journals Climate-Smart Initiatives in Sri Lankan Agriculture Sector: Experience and Perspectives in Solar Powered Water Pumping for Sustainable Crop Production

2020 ◽  
Vol 8 (4) ◽  
Author(s):  
Bandara Rotawewa ◽  
Erandathie Lokupitiya
Keyword(s):  
Sri Lanka ◽  
Solar Energy ◽  
Crop Production ◽  
Low Cost ◽  
Electrical Energy ◽  
Environmental Benefits ◽  
Promising Alternative ◽  
Solar Water ◽  
Water Pumping ◽  
Solar Powered

The availability of low cost and long-lasting water pumping technology is a dream of every farmer. In Sri Lanka, fuel or electricity-powered water pumps are used to irrigate thousands of hectares of field crops, Vegetables, and fruits. Based on the International Water Management Institute (IWMI) survey conducted in the year 2000, there are about 50,000 agro-wells in the dry zone of Sri Lanka. More than 110,000 pumps are used to pump water from those wells. The fuel cost is the biggest burden for the farmers, which results in a high cost of production. The use of solar energy for water pumping is a promising alternative to conventional electricity and fuel-based water pumping systems. Solar-powered water pumping is based on photovoltaic (PV) technology that converts solar energy into electrical energy to run a DC or AC type water pump. This paper presents a comparative analysis of economic and environmental benefits associated with solar water pumping systems against fuel-based water pumping systems.  The analyses were based on practical experience over 50 acres of land cultivated for export-oriented Green Cucumber by 100 members of Tempitiya Farmer Organization in Ampara District of Sri Lanka. It concluded that the solar water pumping system is advantageous compared to a fuel-based pump in terms of economic and environmental aspects.  

scholarly journals Preparation and Characterization of Semi-Flexible Substrates from Natural Fiber/Nickel Oxide/Polycaprolactone Composite for Microstrip Patch Antenna Circuitries for Microwave Applications

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2400
Author(s):  
Ahmad Fahad Ahmad ◽  
Sidek Ab Aziz ◽  
Yazid Yaakob ◽  
Ammar Abd Ali ◽  
Nour Attallah Issa
Keyword(s):  
Nickel Oxide ◽  
Natural Fiber ◽  
Low Cost ◽  
Flexible Substrate ◽  
Natural Fibers ◽  
Flexible Substrates ◽  
Patch Antennas ◽  
Dielectric Parameters ◽  
Microstrip Patch ◽  
Microwave Applications

The study intended to utilizing waste organic fiber for low-cost semi-flexible substrate fabrication to develop microstrip patch antennas for low band communication applications. All the semi-flexible substrates (12.2 wt. % OPEFF/87.8 wt. % PCL, 12.2 wt. % NiO/87.8 wt. % PCL, and 25 wt. % OPEFF/25 wt. % NiO/50 wt. % PCL) were fabricated by oil palm empty fruit fiber (OPEFF) mixed with nickel oxide (NiO) nanoparticles reinforced with polycaprolactone (PCL) as a matrix using a Thermo Haake blending machine. The morphology and crystalized structure of the substrates were tested using Fourier transform infrared (FTIR) spectrometry, X-ray diffraction (X-RD) technique, and scanning electron microscopy (SEM), respectively. The thermal stability behavior of the substrates was analyzed using thermogravimetric analysis (TGA) and differential thermogravimetric (DTG) thermogram. The dielectric properties were characterized by an open-ended coaxial probe (OEC) connected with Agilent N5230A PNA-L Network Analyzer included the 85070E2 dielectric software at frequency range of 8 to 12 GHz. The experimental results showed that NiO/OPEFF/PCL composites exhibit controllable permittivity dielectric constant εr′(f) between 1.89 and 4.2 (Farad/meter, (F/m)), with loss factor εr′′(f) between 0.08 and 0.62 F/m, and loss tangent (tan δ) between 0.05 and 0.18. Return losses measurement of the three patch antennas OPEFF/PCL, NiO/PCL, and OPEFF/NiO/PCL are −11.93, −14.2 and −16.3 dB respectively. Finally, the commercial software package, Computer Simulation Technology Microwave Studio (CSTMWS), was used to investigate the antenna performance by simulate S-parameters based on the measured dielectric parameters. A negligible difference is found between the measured and simulated results. Finally, the results obtained encourage the possibility of using natural fibers and nickel oxide in preparation of the substrates utilize at microwave applications.

scholarly journals A Contact-Mode Triboelectric Nanogenerator for Energy Harvesting from Marine Pipe Vibrations

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1514
Author(s):  
Rui Li ◽  
He Zhang ◽  
Li Wang ◽  
Guohua Liu
Keyword(s):  
Energy Harvesting ◽  
Dielectric Material ◽  
Mechanical Energy ◽  
Experimental Tests ◽  
Electrical Energy ◽  
Underlying Mechanism ◽  
Triboelectric Nanogenerator ◽  
Contact Mode ◽  
Output Performance ◽  
Ocean Environment

Structural health monitoring is of great significance to ensure the safety of marine pipes, while powering the required monitoring sensors remains a problem because the ocean environment is not amenable to the traditional ways of providing an external power supply. However, mechanical energy due to the vortex-induced vibration of pipelines may be harvested to power those sensors, which is a convenient, economic and environmentally friendly way. We here exploit a contact-separation mode triboelectric nanogenerator (TENG) to create an efficient energy harvester to transform the mechanical energy of vibrating pipes into electrical energy. The TENG device is composed of a tribo-pair of dielectric material films that is connected to a mass-spring base to guarantee the contact-separation motions of the tribo-pair. Experimental tests are conducted to demonstrate the output performance and long-term durability of the TENG device by attaching it to a sample pipe. A theoretical model for the energy harvesting system is developed for predicting the electrical output performance of the device. It is established that the normalized output power depends only on two compound variables with all typical factors taken into consideration simultaneously. The simple scale law is useful to reveal the underlying mechanism of the device and can guideline the optimization of the device based on multi-parameters analyses. The results here may provide references for designing contact-mode TENG energy harvesting devices based on the vibration of marine pipes and similar structures.

scholarly journals Flexible Smart Material With Excellent Energy Harvesting

2021 ◽  
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Yu-Ming Chu ◽  
Umair Khan ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Material ◽  
Polyvinylidene Fluoride ◽  
Piezoelectric Element ◽  
Electrical Energy ◽  
Smart Structure ◽  
Flexible Substrates ◽  
Power Harvesting ◽  
The Past

The field of power harvesting has experienced significant growth over the past few years due to the ever-increasing desire to produce portable and wireless electronics with extended lifespans. The present work aims to introduce an approach to harvesting electrical energy from a mechanically excited piezoelectric element and investigates a power analytical model generated by a smart structure of type polyvinylidene fluoride(PVDF) that can be stuck onto fabrics and flexible substrates, although we report the effects of various substrates and investigates the sticking of these substrates on the characterization of the piezoelectric material.

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