Enhanced performance of piezoelectric nanogenerator based on aligned nanofibers and three-dimensional interdigital electrodes

Zhang, Lingling; Gui, Jinzheng; Wu, Zezheng; Li, Rui; Wang, Yuan; Gong, Zhiyi; Zhao, Xingzhong; Sun, Chengliang; Guo, Shishang

doi:10.1016/j.nanoen.2019.103924

Cited by 68 publications

(42 citation statements)

References 45 publications

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“…[ 16–19 ] Among these, GaN is preferred for applications due to its mechanical robustness, biocompatibility, and well‐developed processes for industrial‐scale production. [ 20–23 ] PENGs are fabricated using a variety of geometrical designs such as thin film‐based PENGs [ 20,24 ] and 1D‐based PENGs that include an active medium composed of nanotubes (NTs), [ 25,26 ] nanowires (NWs), [ 27 ] nanorods, [ 28 ] nanosheets, [ 29 ] nanoparticles, [ 30 ] nanobelts, [ 31 ] nanofibers, [ 32 ] and nanocomposites. [ 15 ] Among the above‐mentioned 1D active media used to fabricate PENGs, NWs are the most promising candidates for piezoelectric applications because of their superior mechanical properties, structural perfection due to their defect‐free structure, better strain confinement, and high elastic limit of deformation without plastic deformation.…”

Section: Introductionmentioning

confidence: 99%

Highly Durable Piezoelectric Nanogenerator by Heteroepitaxy of GaN Nanowires on Cu Foil for Enhanced Output Using Ambient Actuation Sources

Johar

Waseem

Hassan

et al. 2020

Advanced Energy Materials

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Highly durable piezoelectric nanogenerators (PENGs) with high conversion efficiency and high power density are of great interest. Here, a foldable, scalable, durable, cost‐effective, sensitive, and high current output PENG developed by the direct integration of van der Waals heteroepitaxial growth of GaN nanowires (NWs) by metal‐organic chemical vapor deposition using a graphene coating on a Cu‐foil is reported where the direct growth of GaN on the metallic substrate plays a key role in achieving the high stability of the PENG. The PENG provides a durable and highly sensitive output compared to the previously reported GaN NW‐based PENGs fabricated by transferring NWs onto a foreign substrate. The reported PENG can harvest energy from a variety of ambient actuation sources such as bending, vibrations, air flow, finger pressing, foot striking, fluid flow, and normal force by weights, with the maximum piezoelectric output voltage and current density recorded as 19.7 V and 1.9 mA cm−2, respectively. Due to its high conversion efficiency, the PENG can power several LEDs and thus can be used to power electronic devices. More importantly, the PENG retains its performance after more than 4 million actuation cycles, demonstrating the potential of the design for practical applications using biomechanical and ambient actuation sources for self‐powered systems.

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Section: Introductionmentioning

confidence: 99%

Highly Durable Piezoelectric Nanogenerator by Heteroepitaxy of GaN Nanowires on Cu Foil for Enhanced Output Using Ambient Actuation Sources

Johar

Waseem

Hassan

et al. 2020

Advanced Energy Materials

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“…The recycled SWCNT/PVDF-TrFE (0.020 wt%) PEG was then tested using a technique most commonly found in literature, namely cyclic compression under low force using finger pinching. 75,76 In this case, a Vpp of 1.6 V was obtained at an input impedance of 10 MΩ (Fig. 8a).…”

Section: Recyclability Of Extrusion Printed Filmsmentioning

confidence: 93%

Printed recyclable and self-poled polymer piezoelectric generators through single-walled carbon nanotube templating

Shepelin

Sherrell

Goudeli

et al. 2020

Energy Environ. Sci.

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“…Furthermore, piezoelectric nanogenerators have recently attracted research interest, [ 89–91 ] thanks to the efforts of Wang and Song [ 92 ] in 2006. They demonstrated the use of ZnO nanowire arrays to convert nanoscale mechanical energy into electrical energy, which opened new routes towards achieving flexible and miniaturized energy harvesters.…”

Section: Energy Harvesting From the Upper Limbmentioning

confidence: 99%

Piezoelectric energy harvesting for self‐powered wearable upper limb applications

et al. 2021

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Wearable devices can be used for monitoring vital physical and physiological signs remotely, as well as for interacting with computers. Widespread adoption of wearables is somewhat hindered by the duration time they can be used without re‐recharging. To ensure uninterrupted operation, these devices need a constant and battery‐less energy supply. Scavenging energy from the wearable's surroundings is, therefore, an essential step towards achieving genuinely autonomous and self‐powered devices. While energy harvesting technologies may not completely eliminate the battery storage unit, they can ensure a maximum duration of use. Piezoelectric energy harvesting is a promising and efficient technique to generate electricity for powering wearable devices in response to body movements. Consequently, we systematically survey the range of technologies used for scavenging energy from the human body, with a particular focus on the upper‐limb area. According to our review and in comparison to other upper limb locations, highest power densities can be achieved from piezoelectric transducers located on the wrist. For short and fast battery charging needs, we therefore review the range of materials, architectures and devices used to scavenge energy from these upper‐limb areas. We provide comparisons as well as recommendations and possible future directions for harvesting energy using this promising technique.

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Enhanced performance of piezoelectric nanogenerator based on aligned nanofibers and three-dimensional interdigital electrodes

Cited by 68 publications

References 45 publications

Highly Durable Piezoelectric Nanogenerator by Heteroepitaxy of GaN Nanowires on Cu Foil for Enhanced Output Using Ambient Actuation Sources

Highly Durable Piezoelectric Nanogenerator by Heteroepitaxy of GaN Nanowires on Cu Foil for Enhanced Output Using Ambient Actuation Sources

Printed recyclable and self-poled polymer piezoelectric generators through single-walled carbon nanotube templating

Piezoelectric energy harvesting for self‐powered wearable upper limb applications

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