Recent developments of hybrid piezo–triboelectric nanogenerators for flexible sensors and energy harvesters

Zhang, Jin; Boyer, Cyrille; Kalantar‐zadeh, Kourosh; Peng, Shuhua; Chu, Dewei; Wang, Chun H.

doi:10.1039/d1na00501d

Cited by 56 publications

(40 citation statements)

References 96 publications

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“…104,280 These endeavours will greatly improve energy harvesting efficiencies and address the power issues in skin bioelectronics for long-term healthcare applications. 281 3.3.3. System integration.…”

Section: Wireless Technologiesmentioning

confidence: 99%

Skin bioelectronics towards long-term, continuous health monitoring

et al. 2022

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Section: Wireless Technologiesmentioning

confidence: 99%

Skin bioelectronics towards long-term, continuous health monitoring

et al. 2022

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“…The obtained V OC , I SC , and charge density values were ≈330 V, ≈10 µA, and ≈83 µC m −2 , respectively. This decrement might be an excessive amount of rGO that can slightly affect the resistivity, likely because of agglomeration [32,34,51,52] During these measurements, the constant external force 7 N and frequency 5 Hz were applied on HNG.…”

Section: Resultsmentioning

confidence: 99%

rGO‐ZnSnO₃ Nanostructure‐Embedded Triboelectric Polymer‐Based Hybridized Nanogenerators

Manchi

Graham

Patnam

et al. 2022

Adv Materials Technologies

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operates based on the coupling effects of electrostatic induction and contact electrification mechanism. [10][11][12][13] TENGs are used in various everyday applications such as healthcare monitoring, self-powered sensors, portable electronic devices, etc., due to their high energy conversion efficiency. Also, the TENGs have various advantages such as easy fabrication, lightweight, costeffectiveness, and durability. [14,15] Therefore, many researchers have been focusing on further improving the output electrical performance of TENGs with flexibility and mechanical sustainability.So far, various approaches have been developed to improve the electrical output performance of TENGs, i.e., by improving the properties of the triboelectric material using chemical functionalization, modifying surface topography, inducing charge carriers, etc. [16][17][18][19][20] Also, hybridizing TENGs with piezoelectric materials is one of the promising methods to enhance electrical output performance. [21,22] However, selecting the piezoelectric materials with high piezoelectric coefficients (d 33 ) and high relative permittivity (k) is the main requirement to increase the electrical performance of nanogenerators. Several piezoelectric materials have been used in mechanical energy harvesting technology, such as lead zirconate titanate (PbZrTiO 3 ; PZT), ZnO, BaTiO 3 , ZnSnO 3 , polyvinylidene fluoride, and KNN ((K, Na)NbO 3 ). [23][24][25][26] Lead-free perovskite ZnSnO 3 has a high piezoelectric coefficient and is nontoxic (≈59 µC cm −2 ), which is helpful for energy harvesting applications. [27][28][29] Recently, Wang et al. prepared a composite matrix using ZnSnO 3 and PDMS, studied the triboelectric and piezoelectric effects (synergistic effect), and reported the enhanced electrical output. [30] Moreover, adding conductive filler materials (i.e., graphite particles, carbon nanotubes, dopamine, and silver nanowires) in the polydimethylsiloxane (PDMS) composite matrix could also efficiently increase the electrical output of nanogenerators. [31][32][33] Incorporating filler materials into the composite matrix enhances the surface charge density, electrical conductivity, and relative permittivity of the composite polymer matrix (CPM), resulting in improved electrical performance. [34,35] In this work, we synthesized lead-free piezoelectric ZnSnO 3 nanocubes (NCs) by a hydrothermal method. The synthesized ZnSnO 3 NCs were embedded into a PDMS polymer to prepare a Piezoelectric/ferroelectric zinc tin oxide (ZnSnO 3 ) nanocubes (NCs) are synthesized via a hydrothermal synthesis process. Piezoelectric materials exhibit a superior dielectric property, strong electric dipole moment, and higher piezoelectric coefficient, which results in an improved electrical output of the nanogenerator. The synthesized ZnSnO 3 NCs are embedded in triboelectric polydimethylsiloxane (PDMS) polymer to employ the synergistic effect of ZnSnO 3 /PDMS composite polymer matrix (CPM), which creates a hybrid nanogenerator (HNG). The proposed HNG reveals a high elect...

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“…Compared with piezoelectric materials, triboelectric materials do not have to be dielectric and have a much wider range of material choices, more diverse working modes (e.g., contact-separation mode, sliding mode, single-electrode mode, and freestanding mode) [ 194 ], and higher energy generation efficiencies under low-frequency motions [ 185 ]. By inducing synergistic integration, the hybrid generator can produce outputs beyond the linear summation of the outputs of the individual triboelectric and piezoelectric mechanisms [ 195 ], thereby realising a comprehensive mechanical energy harvester for continuous energy generation.…”

Section: Hybrid Energy Harvestingmentioning

confidence: 99%

Expedient secondary functions of flexible piezoelectrics for biomedical energy harvesting

Wang

Hong

Venezuela

et al. 2023

Bioactive Materials

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Recent developments of hybrid piezo–triboelectric nanogenerators for flexible sensors and energy harvesters

Abstract: Hybrid piezo-triboelectric nanogenerators constitute a new class of self-powered systems that exploit the synergy of piezoelectric and triboelectric mechanisms to address the energy and power needs for portable and wearable...

Cited by 56 publications

References 96 publications

Skin bioelectronics towards long-term, continuous health monitoring

Skin bioelectronics towards long-term, continuous health monitoring

rGO‐ZnSnO₃ Nanostructure‐Embedded Triboelectric Polymer‐Based Hybridized Nanogenerators

Expedient secondary functions of flexible piezoelectrics for biomedical energy harvesting

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Recent developments of hybrid piezo–triboelectric nanogenerators for flexible sensors and energy harvesters

Abstract: Hybrid piezo-triboelectric nanogenerators constitute a new class of self-powered systems that exploit the synergy of piezoelectric and triboelectric mechanisms to address the energy and power needs for portable and wearable...

Cited by 56 publications

References 96 publications

Skin bioelectronics towards long-term, continuous health monitoring

Skin bioelectronics towards long-term, continuous health monitoring

rGO‐ZnSnO3 Nanostructure‐Embedded Triboelectric Polymer‐Based Hybridized Nanogenerators

Expedient secondary functions of flexible piezoelectrics for biomedical energy harvesting

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rGO‐ZnSnO₃ Nanostructure‐Embedded Triboelectric Polymer‐Based Hybridized Nanogenerators