An enhanced nano-energy harvesting device by hybrid piezoelectric/triboelectric composites

Yu, Chenxu; Xu, Jiwen; Yang, Tao; Qi, Tianpeng; Ye, Yashuai; Li, Taoliang; Shen, Yixuan; Yang, Ling; Zhang, Lixia; Wang, Hua; Zhou, Changrong; Rao, Guanghui

doi:10.1007/s10854-022-09037-4

Cited by 7 publications

(6 citation statements)

References 28 publications

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“…Table S2 reports a comparison of the present work with previous devices based on the piezoelectric−triboelectric hybrid nanogenerator. 32,33,36,44,45 The proposed device features a streamlined structure that exhibits an exceptional output performance.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…When the PT-NG device is tested at a frequency of 1 Hz and an external force of 10 N, its maximum voltage and current (88 V and 5.85 μA, as shown in Figure S11) are attained. Table S2 reports a comparison of the present work with previous devices based on the piezoelectric–triboelectric hybrid nanogenerator. ,,,, The proposed device features a streamlined structure that exhibits an exceptional output performance.…”

Section: Resultsmentioning

confidence: 99%

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Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

Chen,

Cao,

et al. 2024

ACS Appl. Mater. Interfaces

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Hybrid piezoelectric/triboelectric nanogenerators combine the merits of piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs), possessing enhanced electrical output and sensitivity. However, the structures of the majority of hybrid nanogenerators are rather complex in integrating both functions, limiting their practical application in wearable electronics. Herein, we propose to construct a piezoelectric/triboelectric hybrid nanogenerator (PT-NG) with a simple structure based on a composite film to simultaneously achieve the coupling of piezoelectric charge generation and triboelectrification with improved energy conversion efficiency. The composite film consists of electrospun PVDF nanofibers embedded in the surface of the PDMS film, which not only forms a rough nanomorphology on the surface of PDMS but also provides structural protection to the PVDF nanofibers by PDMS during compressive deformation. The results have shown that the PT-NG can generate much higher electrical outputs than individual TENG and PENG devices. The PT-NG devices exhibit a high level of mechanical-to-electrical energy conversion efficiency with superior performance in charging capacitors and functioning as self-powered wearable sensors for the detection of different signals from finger movement, the recognition of various gestures, and the monitoring of respiration. More importantly, the composite device possesses an impressive structure durability, maintaining its layered structure over 5000 testing cycles without noticing any obvious damage on the nanofibers or detachment between the layers. Our results have demonstrated that the combining of piezoelectric nanofibers and triboelectric substrate is an efficient way to fabricate highly efficient energy harvesting devices for intelligent identification and health monitoring.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

Chen,

Cao,

et al. 2024

ACS Appl. Mater. Interfaces

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“…In addition, Table 1 summarizes some of the literature on hybrid nanogenerators. [8,[47][48][49] Hybrid nanogenerators have been evaluated and the results show unique advantages, especially in terms of stability and durability as well as powering low-power wearable electronic devices.…”

Section: Output Power and Capacitor Charging Tests With Different Loadsmentioning

confidence: 99%

A High‐Performance Flexible Arch‐Shaped Tribo‐Piezoelectric Hybrid Nanogenerator for Energy Harvesting

Xiao,

Wang,

Yang

et al. 2023

Energy Tech

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Nanogenerators are attempting to be one of the ideal power supply devices for dealing with the global energy crisis. Nowadays, piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs) are widely studied in the energy field. Herein, a hybrid arch‐shaped nanogenerator is fabricated by combining piezoelectric and triboelectric effects. Polyvinylidene fluoride (PVDF) is used for PENGs. The titanium nitride/polydimethylsiloxane (TiN/PDMS) composite films with microporous structures are prepared for use in TENG. The maximum output peak‐to‐peak voltage and output peak‐to‐peak current of the PENG are 24 V and 17 μA, respectively, with peak power of 0.8 μW. The maximum output peak‐to‐peak voltage and peak‐to‐peak current of the TENG are 35 V and 17 μA, respectively, with peak power of 1.6 μW. The hybrid nanogenerator has a maximum output peak‐to‐peak voltage and peak‐to‐peak current of 73 V and 35 μA, respectively, and a peak power of 3.9 μW. In addition, the hybrid nanogenerator has a stable charging voltage of DC 4 V, which is better than a single TENG (DC 0.3 V) or PENG (DC 2.2 V). The hybrid nanogenerator shows excellent output performance and energy conversion efficiency among existing nanogenerators of similar size.

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“…[7][8][9] And in order to achieve a good skin-fitting properties, recently, polyvinylidene fluoride (PVDF) and its copolymers have found a large number of applications in self-powered wearable devices, electronic integrated devices, etc. [10,11] PVDF-based polymers have five phases of crystallization, 𝛼, 𝛽, 𝛾, 𝜖, and 𝛿, among which the 𝛽 phase has an all-trans structure (TTTT), while the H and F atoms on the chain segment show a 180°flip to form a dipole, and the external pressure causes a change in the dipole moment, thus exhibiting the maximum piezoelectric properties. [12] Therefore, it is important to enhance the piezoelectric output for enlarging the self-powered efficiency by increasing the 𝛽-phase content.…”

Section: Introductionmentioning

confidence: 99%

Boosting Sensing Performance of Flexible Piezoelectric Pressure Sensors by Sb Nanosheets and BaTiO₃ Nanoparticles Co‐Doping in P(VDF‐TrFE) Nanofibers Mat

Wang,

Zhao,

Cao

et al. 2023

Adv Elect Materials

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Flexible piezoelectric pressure sensors (FPPS) received a lot of attention because of their prominent performance in body motion detection and energy recovery. However, it has faced a huge challenge in manufacturing FPPS with high sensitivity, low cost, and high flexibility. Herein, a ternary flexible nanofiber composite with Sb nanosheets and BaTiO3 nanoparticles as the fillers of P(VDF‐TrFE) is prepared by electrospinning. An impressive open‐circuit voltage of 17.1 V and short‐circuit current of 4.4 µA is obtained based on the composite nanofiber mat at a pressure of 128 kPa with 2 Hz frequency. The FPPS not only exhibit a high sensitivity of 96 mV kPa−1 but also an ultrafast response time of 2 ms. Excellent flexibility and reliability are demonstrated by the unchanged open‐circuit voltage after 2400 cycles. The enhanced FPPS performance is owed to the interfacial polarization effect at the inorganic filler‐organic matrix interface, which also enhances the ferroelectric and dielectric properties. The present FPPS is further confirmed to be a real‐time motion monitor and voice recognizer, which can distinguish various actions and sounds according to distinct output voltage signals and is expected to be used in virtual reality devices, robotic electronic skin, haptic simulation, artificial throat, etc.

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An enhanced nano-energy harvesting device by hybrid piezoelectric/triboelectric composites

Cited by 7 publications

References 28 publications

Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

A High‐Performance Flexible Arch‐Shaped Tribo‐Piezoelectric Hybrid Nanogenerator for Energy Harvesting

Boosting Sensing Performance of Flexible Piezoelectric Pressure Sensors by Sb Nanosheets and BaTiO₃ Nanoparticles Co‐Doping in P(VDF‐TrFE) Nanofibers Mat

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An enhanced nano-energy harvesting device by hybrid piezoelectric/triboelectric composites

Cited by 7 publications

References 28 publications

Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

A High‐Performance Flexible Arch‐Shaped Tribo‐Piezoelectric Hybrid Nanogenerator for Energy Harvesting

Boosting Sensing Performance of Flexible Piezoelectric Pressure Sensors by Sb Nanosheets and BaTiO3 Nanoparticles Co‐Doping in P(VDF‐TrFE) Nanofibers Mat

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Boosting Sensing Performance of Flexible Piezoelectric Pressure Sensors by Sb Nanosheets and BaTiO₃ Nanoparticles Co‐Doping in P(VDF‐TrFE) Nanofibers Mat