Development and outlook of high output piezoelectric nanogenerators

Xu, Qi; Wen, Juan; Qin, Yong

doi:10.1016/j.nanoen.2021.106080

Cited by 93 publications

(67 citation statements)

References 128 publications

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“…Piezoelectric nanogenerators have proven as emerging nanodevices to harvest the mechanical energy from various sources including air flow, vibration, rain drop, walking, blood flow etc. [260][261][262] Semiconducting piezoelectric ZnO nanostructures exhibit superior property over Copyright 2013 American Chemical Society.…”

Section: Zno Based Piezoelectric Nanogeneratormentioning

confidence: 99%

Morphological evolution driven semiconducting nanostructures for emerging solar, biological and nanogenerator applications

et al. 2022

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Section: Zno Based Piezoelectric Nanogeneratormentioning

confidence: 99%

Morphological evolution driven semiconducting nanostructures for emerging solar, biological and nanogenerator applications

et al. 2022

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“…This is why nanowires, nanofibers and nanogenerators are not detailed in the present article. Interested readers can find more information in excellent recent review articles. ,− On the other hand, large cylindrical structures are also interesting because they allow an easy implementation in coaxial structures. , However, with a diameter well above 100 μm, they suffer from a high flexural stiffness and are not suitable for being the base of textiles or composite materials.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Fibers: Processing and Challenges

Scheffler

Poulin

2022

ACS Appl. Mater. Interfaces

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Integration of piezoelectric materials in composite and textile structures is promising for creating smart textiles with sensing or energy harvesting functionalities. The most direct integration that combines wearability, comfort, and piezoelectric efficiency consists of using fibers made of piezoelectric materials. The latter include inorganic ceramics or organic polymers. Ceramics have outstanding piezoelectric properties but can not be easily melted or solubilized in a solvent to be processed in the form of fibers. They have to be spun from precursor materials and thermally treated afterward for densification and sintering. These delicate processes have to be carefully controlled to optimize the piezoelectric properties of the fibers. On the other hand, organic piezoelectric polymers, such as polyvinylidene fluoride (PVDF), can be spun by more conventional textile fibers technologies. In addition to enjoy an easier manufacturing, organic piezoelectric fibers display flexibility that facilitates their integration and use in smart textiles. However, organic fibers suffer from a low piezoelectric efficiency. This reviews looks at the processing techniques and their specific limitations and advantages to realize single-component or coaxial piezofibers. Fundamental challenges related to the use of composite fibers are discussed. The latter include challenges for poling and electrically wiring the fibers to collect charges under operation or to apply electrical fields. The electromechanical properties of these fibers processed by different manufacturing techniques are compared. Recent studies of structures used to integrate such fibers in textiles and composites with conventional techniques and their potential applications are discussed.

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“…Thus, increasing attention has been paid to electric nanogenerators that can convert abundant environmental sources and stimuli (heat, light, sound, human body motion, touch, etc.) into electricity. − Among them, piezoelectric nanogenerators (PENGs) have received much more attention in recent years due to their reliable capability of harvesting electric energy from various types of ambient mechanical energy resources through the piezoelectric effect. − Benefiting from the self-power, high sensitivity, lightness, and easy fabrication, PENGs find a broad range of applications in energy harvesters, , self-powered sensors, , implantable biomedical devices, , photocatalysis, and so forth. However, piezoelectric active elements of PENGs are generally dielectric materials; thus, the piezoelectric outputs from a PENG are relatively low.…”

Section: Introductionmentioning

confidence: 99%

Highly Tunable Piezoelectricity of Flexible Nanogenerators Based on 3D Porously Architectured Membranes for Versatile Energy Harvesting and Self-Powered Multistimulus Sensing

Lian

Cheng

et al. 2021

ACS Sustainable Chem. Eng.

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The development of inherently flexible nanogenerators that can effectively convert various environmental resources (pressure, magnetism, solvents, etc.) into electricity is highly desirable for developing sustainable energy. Herein, we demonstrate a flexible piezoelectric nanogenerator with highly tunable piezoelectricity, high sensitivity, and multistimulus sensing capability based on the 3D porous architecture of the poly-(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanocomposite membrane featured by interconnected networkinterfaced magnetic Fe 3 O 4 nanoparticles. Fe 3 O 4 nanoparticles are incorporated to endow the nanogenerator with responsiveness to magnetism. The porous membrane is fabricated by a scalable, template-free, nonsolvent-induced phase-separation approach. By modulating the liquid−liquid demixing separation and nanoparticle migration, pore sizes of the spongy network are effectively tuned over a wide range, by which the porosity, flexibility, and electroactive crystal growth are significantly enhanced. Consequently, the device produces an enhanced piezoelectricity with a superior piezoelectric coefficient d 33 of 48.6 pC/N, a sensitivity of 294 mV/N, a power density of 5.3 μW/cm 3 , and stable electricity-generating performance over 10,000 repetitions. Significant enhancements over the pristine nonporous control are attributed to the facilitated structural deformation, localized stress concentration, and the electroactive crystal promotion. More intriguingly, beyond the response to the contact pressure, the nanogenerator can also yield continuous electric power in response to the magnetic field and organic solvent vapor due to the actuation-driven piezoelectric effects. The versatile nanogenerator with multiple responsiveness permits the self-powered smart sensing of various ambient stimuli and the simultaneous harvesting of the associated energies in both contact and noncontact working modes. This study demonstrates the substantial potential of multistimulus-responsive, porously architectured membrane-based piezoelectric nanogenerators in multifunctional, contactless, and efficient energy harvesting and sensing for wearable and portable electronics.

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Development and outlook of high output piezoelectric nanogenerators

Cited by 93 publications

References 128 publications

Morphological evolution driven semiconducting nanostructures for emerging solar, biological and nanogenerator applications

Morphological evolution driven semiconducting nanostructures for emerging solar, biological and nanogenerator applications

Piezoelectric Fibers: Processing and Challenges

Highly Tunable Piezoelectricity of Flexible Nanogenerators Based on 3D Porously Architectured Membranes for Versatile Energy Harvesting and Self-Powered Multistimulus Sensing

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