Mechanical and piezoelectric properties of surface modified (Na,K)NbO3-based nanoparticle-embedded piezoelectric polymer composite nanofibers for flexible piezoelectric nanogenerators

Kim, Seung Rok; Yoo, Ju Hyun; Kim, Ji Ho; Cho, Yong Soo; Park, Jin Woo

doi:10.1016/j.nanoen.2020.105445

Cited by 32 publications

(22 citation statements)

References 38 publications

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“…For example, the BCZT-0.2 mol% Y membranes are fabricated through electrospinning technology [19], and a voltage of 3 V is generated by finger tapping. (Na,K)NbO 3 -based P(VDF-TrFE) electrospinning membranes are also reported, the corresponding open-circuit voltage reaches 12.2 V, and the highest power is 33.2 µW [20]. Additionally, Pb(Zr 0.52 Ti 0.48 )O 3 / PVDF (PZT/PVDF) composite fibers combining the strengths of the excellent piezoelectricity and flexibility are studied.…”

Section: Introduction mentioning

confidence: 98%

Porous, multi-layered piezoelectric composites based on highly oriented PZT/PVDF electrospinning fibers for high-performance piezoelectric nanogenerators

Zhou

Zhang

et al. 2022

J Adv Ceram

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Piezoelectric nanogenerators (PENGs) that can harvest mechanical energy from ambient environment have broad prospects for multi-functional applications. Here, multi-layered piezoelectric composites with a porous structure based on highly oriented Pb(Zr0.52Ti0.48)O3/PVDF (PZT/PVDF) electrospinning fibers are prepared via a laminating method to construct high-performance PENGs. PZT particles as piezoelectric reinforcing phases are embedded in PVDF fibers and facilitate the formation of polar β phase in PVDF. The multi-layered, porous structure effectively promotes the overall polarization and surface bound charge density, resulting in a highly efficient electromechanical conversion. The PENG based on 10 wt% PZT/PVDF composite fibers with a 220 µm film thickness outputs an optimal voltage of 62.0 V and a power of 136.9 µW, which are 3.4 and 6.5 times those of 10 wt% PZT/PVDF casting film-based PENG, respectively. Importantly, the PENG shows a high sensitivity of 12.4 V·N−1, presenting a significant advantage in comparison to PENGs with other porous structures. In addition, the composites show excellent flexibility with a Young’s modulus of 227.2 MPa and an elongation of 262.3%. This study shows a great potential application of piezoelectric fiber composites in flexible energy harvesting devices.

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Section: Introduction mentioning

confidence: 98%

Porous, multi-layered piezoelectric composites based on highly oriented PZT/PVDF electrospinning fibers for high-performance piezoelectric nanogenerators

Zhou

Zhang

et al. 2022

J Adv Ceram

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“…It has been widely reported that the piezoelectric effect can be significantly enhanced by mixing PZT particles with PVDF and electrospinning the mixture into flexible nanocomposite piezoelectric materials. − A review article on PZT and PVDF by Jain et al indicated that PZT/PVDF composites are one of the new candidate materials for energy harvesting devices, but the inhomogeneity of PZT in PVDF needs to be resolved. A comparison of the two piezoelectric polymers (i.e., PVDF vs PVDF-TrFE) showed that the dispersion of the nanomaterials could be improved more effectively when using the PVDF-TrFE copolymer, thereby promoting the formation of the β phase in PVDF (or its copolymer). , One of the effective methods for improving the dispersion of PZT in a PVDF solution is the modification of the PZT surface. , Liu et al modified PZT with 1-tetradecylphosphonic acid (TDPA) and then added the modified particles to PVDF-TrFE. Following that, they employed electrospinning to prepare a highly efficient energy harvester.…”

Section: Introductionmentioning

confidence: 99%

“…37,38 One of the effective methods for improving the dispersion of PZT in a PVDF solution is the modification of the PZT surface. 39,40 Liu et al 41 modified PZT with 1-tetradecylphosphonic acid (TDPA) and then added the modified particles to PVDF-TrFE. Following that, they employed electrospinning to prepare a highly efficient energy harvester.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Property Enhancement of PZT/Poly(vinylidenefluoride-co-trifluoroethylene) Hybrid Films for Flexible Piezoelectric Energy Harvesters

Chen

Cheng

et al. 2021

ACS Omega

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In this study, lead zirconate titanate (PZT) ceramic particles were added for further improvement. PZT belongs to the perovskite family and exhibits good piezoelectricity. Thus, it was added in this experiment to enhance the piezoelectric response of the poly(vinylidenefluoride- co -trifluoroethylene) (PVDF-TrFE) copolymer, which produced a voltage output of 1.958 V under a cyclic pressure of 290 N. In addition, to further disperse the PZT particles in the PVDF-TrFE matrix, tetradecylphosphonic acid (TDPA) was synthesized and employed to modify the PZT surface, after which the surface-modified PZT (m-PZT) particles were added to the PVDF-TrFE matrix. The TDPA on the PZT surface made it difficult for the particles to aggregate, allowing them to disperse in the polymer solution more stably. In this way, the PZT particles with piezoelectric responses could be uniformly dispersed in the PVDF-TrFE film, thereby further enhancing its overall piezoelectric response. The test results showed that upon the addition of 10 wt % m-PZT, the piezoelectric coefficient of m-PZT/PVDF-TrFE 10 wt % was 27 pC/N; and under a cyclic pressure of 290 N, the output voltage reached 3.426 V, which demonstrated a better piezoelectric response than the polymer film with the original PZT particles. Furthermore, the piezoelectric coefficient of m-PZT/PVDF-TrFE 10 wt % was 27.1 pC/N. This was exhibited by maintaining a piezoelectric coefficient of 26.8 pC/N after 2000 cycles. Overall, a flexible piezoelectric film with a high piezoelectric coefficient was prepared by following a simple fabrication process, which showed that this film possesses great commercial potential.

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“…For example, the BCTZ-0.2mol% Y nano bers are fabricated through electrospinning technology [19], and a voltage of 3V is generated by nger tapping. (Na,K)NbO 3 -based P(VDF-TrFE) electrospinning nano bers are also reported, the corresponding open-circuit voltage reaches 12.2V, and the highest power is 33.2µW [20]. Additionally, PZT/PVDF composite bers combining the strengths of the excellent piezoelectricity and exibility are studied.…”

Section: Introductionmentioning

confidence: 96%

Porous, Multi-layered Piezoelectric Composites Based on Highly Oriented Pzt/pvdf Electrospinning Fibers for High-performance Piezoelectric Nanogenerators

Du¹,

Zhou²,

Zhang³

et al. 2021

Preprint

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Piezoelectric nanogenerators (PENGs) that can harvest mechanical energy from ambient environment have broad prospects for multi-functional applications. Here, multi-layered piezoelectric composites with a porous structure based on highly oriented PZT/PVDF electrospinning fibers are prepared via a laminating method to construct high-performance PENGs. PZT particles as piezoelectric reinforcing phases are embedded in PVDF fibers and facilitate the formation of polar β phase in PVDF. The multi-layered, porous structure effectively promotes the overall polarization and surface bound charge density, resulting in highly efficient electromechanical conversion. The PENG based on 10 wt.% PZT/PVDF composite fibers with a 220 µm film thickness output an optimal voltage of 62.0 V and a power of 136.9 μW, which is 3.4 and 6.5 times the voltage and power of 10wt.% PZT/PVDF casting film-based PENG, respectively. Importantly, the PENG shows a high sensitivity of 12.4 VN-1, presenting a significant advantage in comparison to PENGs with other porous structures. In addition, the composites show excellent flexibility with a Young’s modulus of 227.2 MPa and an elongation of 262.3%. This work shows great potential application of piezoelectric fiber composites in flexible energy harvesting devices.

show abstract

Mechanical and piezoelectric properties of surface modified (Na,K)NbO3-based nanoparticle-embedded piezoelectric polymer composite nanofibers for flexible piezoelectric nanogenerators

Cited by 32 publications

References 38 publications

Porous, multi-layered piezoelectric composites based on highly oriented PZT/PVDF electrospinning fibers for high-performance piezoelectric nanogenerators

Porous, multi-layered piezoelectric composites based on highly oriented PZT/PVDF electrospinning fibers for high-performance piezoelectric nanogenerators

Piezoelectric Property Enhancement of PZT/Poly(vinylidenefluoride-co-trifluoroethylene) Hybrid Films for Flexible Piezoelectric Energy Harvesters

Porous, Multi-layered Piezoelectric Composites Based on Highly Oriented Pzt/pvdf Electrospinning Fibers for High-performance Piezoelectric Nanogenerators

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