Energy Harvesting Performance of Printed Barium Titanate Nanocomposites

2018 ◽  
Author(s):  
Mohammad H. Malakooti ◽  
Florian Julé ◽  
Henry A. Sodano
Keyword(s):  
Additive Manufacturing ◽  
Barium Titanate ◽  
Energy Harvesting ◽  
Common Type ◽  
Device Performance ◽  
Functional Nanostructures ◽  
Rapid Fabrication ◽  
Titanate Nanowires ◽  
Energy Harvesting Devices ◽  
Synthesis Of Barium Titanate

Development of nanostructured devices for sensing, energy storage, actuating, and energy harvesting has attracted many researchers. The most common type of functional nanostructures is piezoelectric nanomaterials. Regardless of numerous studies in this area, there is a need for rapid fabrication of nanostructured devices, or simply functional nanocomposites. Here we present a simple, scalable fabrication technique for additive manufacturing of nanocomposite energy harvesting devices composed of barium titanate nanowires. Details on hydrothermal synthesis of barium titanate (BaTiO3) nanowires and printable inks, manufacturing process, and energy harvesting performance of the printed devices are presented here. The experimental results suggest that additive manufacturing of functional nanocomposites allows controlling the microstructures and enhancing device performance.

Vibration Sensing and Energy Harvesting Using Ultra-Long Vertically Aligned Array of Barium Titanate Nanowires

2012 ◽  
Author(s):  
Aneesh Koka ◽  
Henry A. Sodano
Keyword(s):  
Barium Titanate ◽  
Energy Harvesting ◽  
High Efficiency ◽  
Vibrational Energy ◽  
Linear Behavior ◽  
Vibration Sensing ◽  
Titanate Nanowires ◽  
Vertically Aligned ◽  
Aligned Array ◽  
Energy Harvesting Devices

In this paper, novel ultra-long aligned array of Barium Titanate (BaTiO3) nanowires (NWs) was used to fabricate piezoelectric sensors and investigate their vibration sensing and energy harvesting potential. The acceleration sensing characteristics of the piezoelectric BaTiO3 NWs based sensor was presented by conducting vibration excitation experiments induced from an electromagnetic shaker. Two different top electrode configurations which include a melted Indium and a short cantilever Indium beam located over the BaTiO3 NWs surface were utilized to study the acceleration sensing and energy harvesting scope respectively. The results shown validate their excellent energy conversion capabilities and demonstrate linear behavior over a wide frequency spectrum which elucidates their potential to be developed as advanced sensors and high efficiency vibrational energy harvesting devices.

scholarly journals A Feasibility Study of Fabrication of Piezoelectric Energy Harvesters on Commercially Available Aluminum Foil

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2797 ◽  
Author(s):  
Chongsei Yoon ◽  
Buil Jeon ◽  
Giwan Yoon
Keyword(s):  
Energy Harvesting ◽  
Elevated Temperatures ◽  
Aluminum Foil ◽  
Cost Effective ◽  
Device Fabrication ◽  
Point Of View ◽  
Plastic Substrate ◽  
Device Performance ◽  
Piezoelectric Energy ◽  
Energy Harvesting Devices

In this paper, we present zinc oxide (ZnO)-based flexible harvesting devices employing commercially available, cost-effective thin aluminum (Al) foils as substrates and conductive bottom electrodes. From the device fabrication point of view, Al-foils have a relatively high melting point, allowing for device processing and annealing treatments at elevated temperatures, which flexible plastic substrate materials cannot sustain because of their relatively low melting temperatures. Moreover, Al-foil is a highly cost-effective, commercially available material. In this work, we fabricated and characterized various kinds of multilayered thin-film energy harvesting devices, employing Al-foils in order to verify their device performance. The fabricated devices exhibited peak-to-peak output voltages ranging from 0.025 V to 0.140 V. These results suggest that it is feasible to employ Al-foils to fabricate energy-efficient energy harvesting devices at relatively high temperatures. It is anticipated that with further process optimization and device integration, device performance can be further improved.

scholarly journals Formation and Characterization of Various ZnO/SiO2-Stacked Layers for Flexible Micro-Energy Harvesting Devices

2018 ◽  
Vol 8 (7) ◽  
pp. 1127 ◽  
Author(s):  
Chongsei Yoon ◽  
Buil Jeon ◽  
Giwan Yoon
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Indium Tin Oxide ◽  
Control Sample ◽  
Single Layer ◽  
Rf Magnetron Sputtering ◽  
Device Performance ◽  
Polyethylene Naphthalate ◽  
Flexible Devices ◽  
Energy Harvesting Devices

In this paper, we present a study of various ZnO/SiO2-stacked thin film structures for flexible micro-energy harvesting devices. Two groups of micro-energy harvesting devices, SiO2/ZnO/SiO2 micro-energy generators (SZS-MGs) and ZnO/SiO2/ZnO micro-energy generators (ZSZ-MGs), were fabricated by stacking both SiO2 and ZnO thin films, and the resulting devices were characterized. With a particular interest in the fabrication of flexible devices, all the ZnO and SiO2 thin films were deposited on indium tin oxide (ITO)-coated polyethylene naphthalate (PEN) substrates using a radio frequency (RF) magnetron sputtering technique. The effects of the thickness and/or position of the SiO2 films on the device performance were investigated by observing the variations of output voltage in comparison with that of a control sample. As a result, compared to the ZnO single-layer device, all the ZSZ-MGs showed much better output voltages, while all the SZS-MG showed only slightly better output voltages. Among the ZSZ-MGs, the highest output voltages were obtained from the ZSZ-MGs where the SiO2 thin films were deposited using a deposition power of 150 W. Overall, the device performance seems to depend significantly on the position as well as the thickness of the SiO2 thin films in the ZnO/SiO2-stacked multilayer structures, in addition to the processing conditions.

Energy Harvesting From Arrays of Long Barium Titanate Nanowires

2013 ◽  
Author(s):  
Aneesh Koka ◽  
Henry A. Sodano
Keyword(s):  
Barium Titanate ◽  
Energy Harvesting ◽  
Resonant Frequency ◽  
Vibrational Energy ◽  
Impedance Matching ◽  
Ac Power ◽  
Optimal Load ◽  
Titanate Nanowires ◽  
Load Resistor ◽  
Piezoelectric Behavior

In this paper, a piezoelectric nanoelectromechanical system (NEMS) is fabricated using newly developed ultra-long (∼45μm) aligned barium titanate (BaTiO3) nanowire (NW) arrays that exhibit piezoelectric behavior for harvesting mechanical vibrational energy. The novel BaTiO3 NW NEMS is fabricated to have resonance at frequencies below 500 Hz for efficient energy harvesting since ambient mechanical vibrations typically exists in the 1 Hz to 1 kHz range. The maximum AC power harvested from the BaTiO3 NEMS is evaluated by impedance matching at resonant frequency. In addition, NEMS energy harvester comprised of seedless solution grown aligned ZnO NW arrays is also fabricated and direct vibration excitation experiments are performed to determine the peak AC power at optimal load resistor. Here, we clearly report the superior power harvesting capability from long ferroelectric BaTiO3 NW arrays than semiconducting ZnO NWs for the same electrode area when excited with the same sinusoidal base acceleration of 1g RMS at resonant frequency.

scholarly journals Formation and characterization of various ZnO/SiO2-stacked layers for flexible micro-energy harvesting devices

2018 ◽  
Author(s):  
Chongsei Yoon ◽  
Buil Jeon ◽  
Giwan Yoon
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Control Sample ◽  
Single Layer ◽  
Rf Magnetron Sputtering ◽  
Device Performance ◽  
Flexible Devices ◽  
Deposition Power ◽  
Energy Harvesting Devices

In this paper, we present a study of various ZnO/SiO2-stacked thin film structures for flexible micro-energy harvesting devices. Two groups of micro-energy harvesting devices, SiO2/ZnO/SiO2 micro-energy generators (SZS-MGs) and ZnO/SiO2/ZnO micro-energy generators (ZSZ-MGs), were fabricated by stacking both SiO2 and ZnO thin films, and the resulting devices were characterized. With a particular interest in the fabrication of flexible devices, all the ZnO and SiO2 thin films were deposited on ITO-coated PEN substrates using an RF magnetron sputtering technique. The effects of the thickness and/or position of the SiO2 films on the device performance were investigated by observing the variations of output voltage in comparison with that of a control sample. As a result, compared to the ZnO single-layer device, all the ZSZ-MGs showed much better output voltages, while all the SZS-MG showed only slightly better output voltages. Among the ZSZ-MGs, the highest output voltages were obtained from the ZSZ-MGs where the SiO2 thin films were deposited using a deposition power of 150 W. Overall, the device performance seems to depend significantly on the position as well as the thickness of the SiO2 thin films in the ZnO/ SiO2-stacked multilayer structures, in addition to the processing conditions.

Vibrational Energy Harvesting Devices

2010 ◽  
Vol 2 (2) ◽  
pp. 80-92
Author(s):  
Rupesh Patel ◽  
Atanas A. Popov ◽  
Stewart McWilliam
Keyword(s):  
Energy Harvesting ◽  
Vibrational Energy ◽  
Energy Harvesting Devices ◽  
Vibrational Energy Harvesting

scholarly journals Piezoelectric property comparison of two-dimensional ZnO nanostructures for energy harvesting devices

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3363-3370
Author(s):  
Ang Yang ◽  
Yu Qiu ◽  
Dechao Yang ◽  
Kehong Lin ◽  
Shiying Guo
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Property ◽  
Piezoelectric Effect ◽  
Theoretical Studies ◽  
Two Dimensional ◽  
Zno Nanostructures ◽  
Energy Harvesting Devices ◽  
Experimental And Theoretical Studies

In this paper, experimental and theoretical studies of the piezoelectric effect of two-dimensional ZnO nanostructures, including straight nanosheets (SNSs) and curved nanosheets (CNSs) are conducted.

scholarly journals Enhanced Power Extraction with Sediment Microbial Fuel Cells by Anode Alternation

Fuels ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 168-178
Author(s):  
Marzia Quaglio ◽  
Daniyal Ahmed ◽  
Giulia Massaglia ◽  
Adriano Sacco ◽  
Valentina Margaria ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Energy Harvesting ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Average Power ◽  
Power Extraction ◽  
Harvesting Technique ◽  
Harvesting Method ◽  
Energy Harvesting Devices ◽  
Efficient Power

Sediment microbial fuel cells (SMFCs) are energy harvesting devices where the anode is buried inside marine sediment, while the cathode stays in an aerobic environment on the surface of the water. To apply this SCMFC as a power source, it is crucial to have an efficient power management system, leading to development of an effective energy harvesting technique suitable for such biological devices. In this work, we demonstrate an effective method to improve power extraction with SMFCs based on anodes alternation. We have altered the setup of a traditional SMFC to include two anodes working with the same cathode. This setup is compared with a traditional setup (control) and a setup that undergoes intermittent energy harvesting, establishing the improvement of energy collection using the anodes alternation technique. Control SMFC produced an average power density of 6.3 mW/m2 and SMFC operating intermittently produced 8.1 mW/m2. On the other hand, SMFC operating using the anodes alternation technique produced an average power density of 23.5 mW/m2. These results indicate the utility of the proposed anodes alternation method over both the control and intermittent energy harvesting techniques. The Anode Alternation can also be viewed as an advancement of the intermittent energy harvesting method.

scholarly journals Rapid fabrication of MOF-based mixed matrix membranes through digital light processing

2021 ◽  
Author(s):  
Alexey Pustovarenko ◽  
Beatriz Seoane ◽  
Edy Abou-Hamad ◽  
Helen E King ◽  
Bert Weckhuysen ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Processing Speed ◽  
Mixed Matrix Membranes ◽  
Scientific Interest ◽  
Mixed Matrix ◽  
Digital Light Processing ◽  
Additive Manufacturing Technology ◽  
Rapid Fabrication ◽  
Manufacturing Methods

3D printing, also known as additive manufacturing technology, has greatly expanded across multiple sectors of technology replacing classical manufacturing methods by combining processing speed and high precision. The scientific interest...

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