Nanogenerator for determination of acoustic power in ultrasonic reactors

Mistewicz, Krystian; Jesionek, Marcin; Kim, Hoe Joon; Hajra, Sugato; Kozioł, M.; Chrobok, Łukasz; Wang, Xudong

doi:10.1016/j.ultsonch.2021.105718

Cited by 29 publications

(12 citation statements)

References 53 publications

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“…In the frequency region (ω Ob1 , ω Oa1 ), transmission coefficient t = 0 because the absolute values of the elastic coefficients of positive and negative domains are approximately equal. According to our simulation results, the two MPBGs cannot be generated in other piezoelectric phononic crystals [6][7][8][9][10]. If the SRRs are not placed on the opposite sides of the MPPC along the x-axis, the MPBGs will not also be created near the resonance frequencies.…”

Section: Discussionmentioning

confidence: 75%

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Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal

et al. 2022

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We design a magneto-electro-elastic piezoelectric phononic crystal (MPPC) using a one-dimensional piezoelectric superlattice (with a 3m point group) and split-ring resonators. The effect of the split-ring resonators is to enhance the piezoelectric effect of the piezoelectric superlattices. This effect will create elastic anomalies and generate the phononic band gaps. These are first proposed theoretically. We calculate the transmission function of the MPPC through Transfer Matrix Method of the phononic crystal. By using the transmission function, we theoretically study the propagation properties of the acoustic waves in the MPPC. The mechanism for multifield coupling is analyzed. A type of phononic band gap is created, called the multifield coupling phononic band gap. We analyze the possibility of crystals as left-handed metamaterials. We also discuss some potential applications.

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Section: Discussionmentioning

confidence: 75%

“…As a result, the phononic crystal containing a piezoelectric material known as piezoelectric phononic crystals comes to be realized and is studied widely. Vibration energy can be easily converted into electric energy by introducing piezoelectric material within the phononic crystal [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal

et al. 2022

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“…To check the piezoelectric output of the developed sensor, a digital oscilloscope was used and the sensor was tapped with the fingers. Silicon gloves were used to avoid any possible static charges influence [ 42 ].…”

Section: Resultsmentioning

confidence: 99%

Piezoelectric nanogenerator for bio-mechanical strain measurement

Javed¹,

Rafiq²,

Nazeer³

et al. 2022

Beilstein J. Nanotechnol.

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Piezoelectric materials have attracted more attention than other materials in the field of textiles. Piezoelectric materials offer advantages as transducers, sensors, and energy-harvesting devices. Commonly, ceramics and quartz are used in such applications. However, polymeric piezoelectric materials have the advantage that they can be converted into any shape and size. In smart textiles, polyvinylidene fluoride (PVDF) and other piezoelectric polymers are used in the form of fibers, filaments, and composites. In this research, PVDF nanofibers were developed and integrated onto a knitted fabric to fabricate a piezoelectric device for human body angle monitoring. Scanning electron microscopy and X-ray diffraction analyses were used to study the morphology and to confirm the beta phase in fibers. The results reveal that the nanofibers made from solutions with high concentration were smooth and defect-free, compared to the fibers obtained from solutions with low concentration, and possess high crystallinity as well. Under high dynamic strain more output voltage is generated than under low dynamic strain. The maximum current density shown by the device is 172.5 nA/cm2. The developed piezoelectric nanofiber sensor was then integrated into a knitted fabric through stitching to be used for angle measurement. With increasing bending angle, the output voltage increased. The promising results show that the textile-based piezoelectric sensor developed in this study has a great potential to be used as an angle measuring wearable device for the human body due to its high current density output and flexibility.

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“…Especially, we focused on current device research and application progress of piezoelectric materials in the medical field. Owing to the sensitive piezoelectric or ferroelectric properties, we further summarized the current research on perovskite piezoelectricity, and further designed and proposed its future applications in the field of ultrasound, especially the huge application prospects of ultrasound medicine applications, such as biological and chemical sensors, high-intensity focused ultrasound for medical therapeutics, blood flow rate measurement, and ultrasound imaging [40][41][42][43][44][45][46].…”

Section: Discussionmentioning

confidence: 99%

Organic–Inorganic Hybrid Perovskite Materials for Ultrasonic Transducer in Medical Diagnosis

Yang

Zhang

et al. 2022

Crystals

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The ultrasonic transducer is considered the most important component of ultrasound medical instruments, and its key active layer is generally fabricated by piezoelectric materials, such as BaTiO3, Pb (Zn, Ti)O3, PVDF, etc. As the star material, perovskite photovoltaic materials (organic and inorganic halide perovskite materials, such as CH3NH3PbI3, CsPbI3, etc.) have great potential to be widely used in solar cells, LEDs, detectors, and photoelectric and piezoelectric detectors due to their outstanding photoelectric and piezoelectric effects. Herein, we firstly discussed the research progress of commonly used piezoelectric materials and the corresponding piezoelectric effects, the current key scientific status, as well as the current application status in the field of ultrasound medicine. Then, we further explored the current progress of perovskite materials used in piezoelectric-effect devices, and their research difficulties. Finally, we designed an ideal ultrasonic transducer fabricated by perovskite photovoltaic materials and considered the future application prospects of organic and inorganic halide perovskite material in the field of ultrasound.

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Nanogenerator for determination of acoustic power in ultrasonic reactors

Abstract: Graphical abstract

Cited by 29 publications

References 53 publications

Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal

Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal

Piezoelectric nanogenerator for bio-mechanical strain measurement

Organic–Inorganic Hybrid Perovskite Materials for Ultrasonic Transducer in Medical Diagnosis

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