High performance composition-tailored PVDF triboelectric nanogenerator enabled by low temperature-induced phase transition

Ong, Daniel Tze Kheng; Koay, Jason Soon Chye; Sim, Moh Terng; Aw, Kean C.; Nakajima, Takashi; Chen, BingHui; Tan, Swee Tiam; Gan, Wee Chen

doi:10.1016/j.nanoen.2023.108555

Cited by 21 publications

(9 citation statements)

References 56 publications

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“…Additionally, elemental distribution mapping (Figures S14 and 15) indicated that the PVDF film peeled off from Si-OC-SJNPs contained almost no other components and remained as a pure PVDF film. Compared to the pure PVDF films prepared by other methods in the literature, the Si-OC-SJNPs/PVDF films possess superior ferroelectric properties nearing the maximum theoretical value of pure PVDF (Figure f). ,− …”

Section: Resultsmentioning

confidence: 93%

Oppositely Charged Interfacial Janus Nanoparticles Induce the Formation of Highly Ferroelectric Poling-Free PVDF Films for Piezoelectric Energy Generation

Huang,

Liu,

et al. 2024

ACS Appl. Nano Mater.

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Poly(vinylidene fluoride) (PVDF) is widely used as a ferroelectric polymer due to its good flexibility and stability. However, its ferroelectricity requires enhancement through doping or modification processes, and the necessity for prepoling significantly limits its applications. In the present work, we propose an interfacial ion-dipole induction method for preparing high-ferroelectric PVDF films using oppositely charged single-chain Janus nanoparticles (OC-SJNPs). The SJNPs possess a positive end with quaternized amino groups that allow for uniform electrodeposition on the substrate surface. After hydrolysis, due to the nanoscale size, proton transfer occurs between carboxyl and amino groups, thus promoting the degree of ionization and the charge density of both ends. The negatively charged (−45 mV) end of OC-SJNPs exhibits strong dipole interaction with PVDF chains, leading to a high β-phase content of 90.8%, with a residual polarization strength of 10.6 μC/cm2, nearing the theoretical maximum of pure PVDF films. Additionally, the orientation of OC-SJNPs induces the alignment of PVDF dipoles, thus achieving high piezoelectric energy generation without prepoling. Another polar polymer, polyacrylonitrile (PAN) also demonstrated higher piezoelectric energy generation by using the proposed method. It not only successfully prepared high-ferroelectric and poling-free PVDF films as piezoelectric energy generators but also offers a universal and efficient approach for the preparation of polar polymer materials.

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Section: Resultsmentioning

confidence: 93%

Oppositely Charged Interfacial Janus Nanoparticles Induce the Formation of Highly Ferroelectric Poling-Free PVDF Films for Piezoelectric Energy Generation

Huang,

Liu,

et al. 2024

ACS Appl. Nano Mater.

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“…Another substance that loses its electrons is called an electron donor. Polytetrafluoroethylene (PTFE), 107 polydimethylsiloxane (PDMS), 107 fluorinated ethylene propylene (FEP) 108 PVDF, 109 PVA, 110 poly-(lactic acid) (PLA), 111 nylon, 112 and polyester 113 are known as the most widely used electron acceptors due to their high electron affinity. Although polyimide (Kapton), 114 poly-(ethylene terephthalate) (PET), 115 and silicone 116 are also used, they are less popular than the above polymers due to their weaker charge affinity.…”

Section: ■ Energy Harvesting Materialsmentioning

confidence: 99%

Advancements in Bio-inspired Self-Powered Wireless Sensors: Materials, Mechanisms, and Biomedical Applications

Farzin,

Naghib,

Rabiee

2024

ACS Biomater. Sci. Eng.

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The rapid maturation of smart city ecosystems is intimately linked to advances in the Internet of Things (IoT) and self-powered sensing technologies. Central to this evolution are battery-less sensors that are critical for applications such as continuous health monitoring through blood metabolites and vital signs, the recognition of human activity for behavioral analysis, and the operational enhancement of humanoid robots. The focus on biosensors that exploit the human body for energy-spanning wearable, attachable, and implantable variants has intensified, driven by their broad applicability in areas from underwater exploration to biomedical assays and earthquake monitoring. The heart of these sensors lies in their diverse energy harvesting mechanisms, including biofuel cells, and piezoelectric, triboelectric, and pyroelectric nanogenerators. Notwithstanding the wealth of research, the literature still lacks a holistic review that integrates the design challenges and implementation intricacies of such sensors. Our review seeks to fill this gap by thoroughly evaluating energy harvesting strategies from both material and structural perspectives and assessing their roles in powering an array of sensors for myriad uses. This exploration offers a comprehensive outlook on the state of self-powered sensing devices, tackling the nuances of their deployment and highlighting their potential to revolutionize data gathering in autonomous systems. The intent of this review is to chart the current landscape and future prospects, providing a pivotal reference point for ongoing research and innovation in selfpowered wireless sensing technologies.

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“…This gives good dielectric constant with inferior piezoelectric polarization. Such characteristics affect the piezoelectric and triboelectric properties of the material [64]. The α-phase of PVDF can be transformed to the electroactive β-phase with the help of high-temperature annealing treatment or mechanical stretching.…”

Section: Pvdfmentioning

confidence: 99%

A critical review on polyvinylidene fluoride (PVDF)/zinc oxide (ZnO)-based piezoelectric and triboelectric nanogenerators

Shee,

Banerjee,

Bairagi

et al. 2024

J. Phys. Energy

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In the recent era of energy crisis, piezoelectric and triboelectric effects are surfacing out of several research topics. Polyvinylidene fluoride (PVDF) and its copolymers are well known piezoelectric polymers due to their high piezoelectricity and widely used in flexible devices. PVDF is greatly utilized in preparation of triboelectric layer also due to its higher electronegative nature amongst common polymers. On the other hand, zinc oxide (ZnO) has been studied widely to investigate its multifunctional properties including piezoelectricity, pyroelectricity and antibacterial activity. This versatile material can be prepared, using low cost and environmental friendly routes, in various morphologies. Various research is already performed to capture the synergistic effect of reinforcing ZnO within PVDF polymeric matrix. This work firstly describes the basic principles of piezoelectric and triboelectric effects. Thereafter, piezoelectric and triboelectric performances of PVDF and ZnO based materials are briefly depicted based on their structures. Finally, challenges and future scopes, associated with the mechanical energy harvesting from such materials, are highlighted.

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High performance composition-tailored PVDF triboelectric nanogenerator enabled by low temperature-induced phase transition

Cited by 21 publications

References 56 publications

Oppositely Charged Interfacial Janus Nanoparticles Induce the Formation of Highly Ferroelectric Poling-Free PVDF Films for Piezoelectric Energy Generation

Oppositely Charged Interfacial Janus Nanoparticles Induce the Formation of Highly Ferroelectric Poling-Free PVDF Films for Piezoelectric Energy Generation

Advancements in Bio-inspired Self-Powered Wireless Sensors: Materials, Mechanisms, and Biomedical Applications

A critical review on polyvinylidene fluoride (PVDF)/zinc oxide (ZnO)-based piezoelectric and triboelectric nanogenerators

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