Enhancement of piezoelectric energy-harvesting capacity of electrospun β-PVDF nanogenerators by adding GO and rGO

Ongun, Merve Zeyrek; Oğuzlar, Sibel; Doluel, Eyyüp Can; Kartal, Ugur; Yurddaşkal, Metin

doi:10.1007/s10854-019-02715-w

Cited by 44 publications

(22 citation statements)

References 71 publications

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“…Ongun and co-workers also showed improvements in the piezoelectric characteristics and energy harvesting capacity of PVDF by adding GO and rGO ( Figure 12 ) [ 111 ]. The solution was prepared with the following concentrations: 10 mL PVDF mixed with DMF/acetone 1/1 scale and GO/rGO in 2 different concentrations of 4 and 8 mg (0.4 and 0.8 wt.%).…”

Section: Additives To Improve Piezoelectric Properties Of Electrosmentioning

confidence: 99%

“…In the case of GO, where authors compared the 0.4 wt.% and 0.8 wt.% concentrated PVDF composite, the higher percentage of GO (0.8 wt.%) resulted in reduced dielectric constant and low electric potential. Authors explained that 0.8 wt.% composite has more functional groups attached to carbon atoms than 0.4 wt.%, which leads to the decreasing of electron movement in the structure [ 111 ].…”

Section: Additives To Improve Piezoelectric Properties Of Electrosmentioning

confidence: 99%

“… Schematic scheme of fabrication and application of the experimental procedure for β-PVDF-based nanogenerator. Reprinted with permission from [ 111 ]. …”

Section: Figurementioning

confidence: 99%

See 2 more Smart Citations

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

Kalimuldina

Turdakyn

Abay

et al. 2020

Sensors

235

124

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With the increase of interest in the application of piezoelectric polyvinylidene fluoride (PVDF) in nanogenerators (NGs), sensors, and microdevices, the most efficient and suitable methods of their synthesis are being pursued. Electrospinning is an effective method to prepare higher content β-phase PVDF nanofiber films without additional high voltage poling or mechanical stretching, and thus, it is considered an economically viable and relatively simple method. This work discusses the parameters affecting the preparation of the desired phase of the PVDF film with a higher electrical output. The design and selection of optimum preparation conditions such as solution concentration, solvents, the molecular weight of PVDF, and others lead to electrical properties and performance enhancement in the NG, sensor, and other applications. Additionally, the effect of the nanoparticle additives that showed efficient improvements in the PVDF films was discussed as well. For instance, additives of BaTiO3, carbon nanotubes, graphene, nanoclays, and others are summarized to show their contributions to the higher piezo response in the electrospun PVDF. The recently reported applications of electrospun PVDF films are also analyzed in this review paper.

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Section: Additives To Improve Piezoelectric Properties Of Electrosmentioning

confidence: 99%

Section: Additives To Improve Piezoelectric Properties Of Electrosmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

Kalimuldina

Turdakyn

Abay

et al. 2020

Sensors

235

124

View full text Add to dashboard Cite

show abstract

“…The maximum voltage and the current of our sample using a simple finger tap-in were around 0.075 mV and 24 mA, respectively. Therefore, the network had better electrical conductivity as the current amount was significantly higher (in the mA range) than that reported by others (mostly in μA to nA range). − …”

Section: Resultsmentioning

confidence: 77%

Graphene-Coated PVDF/PAni Fiber Mats and Their Applications in Sensing and Nanogeneration

Rahman

Rubaiya

Islam

et al. 2022

ACS Appl. Mater. Interfaces

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Forcespinning is a powerful technique to produce fiber systems with suitable properties for a vast array of applications. This study investigates the sensing and energy generation performance of PVDF/PAni fiber mat systems made by the forcespinning method with and without graphene coating. The developed fiber mats were coated with graphene nanoflakes by drop-casting. The graphene-coated nanocomposites show an average output voltage of 75 mV (peak-to-peak), which is 300% higher compared to bare fiber mats, and an output current of 24 mA (peak-to-peak) by gentle finger pressing. Moreover, graphene-coated PVDF/PAni showed a volume conductivity of 1.2 × 10–7 S/cm and was investigated as a promising system for temperature (5 times better sensitivity than normal fiber mat), vibration (2 times better voltage generation), and airflow sensing. The graphene-coated composite has been further investigated as a water tide energy harvesting piezoelectric nanogenerator, with the system generating ∼40 mV for a synthetic ocean wave with a flow rate of 30 mL/min. In the future, graphene-coated nanofiber mats can be a solution for low-powered sensors and to harvest blue energy and vibration energy.

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“…Another research direction in this field is focused on adding particle doping onto piezoelectric polymers, which can utilize various properties of inorganic nanomaterials to improve the piezoelectric resistance of nanofibrous PENGs. The most commonly used nanoparticles include ZnO [ 14 ], ZrO [ 15 ], graphene oxide (GO) [ 16 ], Al 2 O 3 [ 17 ], TiO 2 [ 18 ], carbon nanotubes [ 19 ], and others. Among these, ZnO is a kind of semiconductor material, and the asymmetric central crystal of ZnO and its structure give it piezoelectric properties.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Piezoelectric Properties of Flexible Nanofibrous Membranes by Hierarchical Structures and Nanoparticles

et al. 2022

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Piezoelectric nanogenerators (PENGs) show superiority in self-powered energy converters and wearable electronics. However, the low power output and ineffective transformation of mechanical energy into electric energy l limit the role of PENGs in energy conversion and storage devices, especially in fiber-based wearable electronics. Here, a PAN-PVDF/ZnO PENG with a hierarchical structure was designed through electrospinning and a hydrothermal reaction. Compared with other polymer nanofibers, the PAN-PVDF/ZnO nanocomposites not only showed two distinctive diameter distributions of uniform nanofibers, but also the complete coverage and embedment of ZnO nanorods, which brought about major improvements in both mechanical and piezoelectric properties. Additionally, a simple but effective method to integrate the inorganic nanoparticles into different polymers and regulate the hierarchical structure by altering the types of polymers, concentrations of spinning solutions, and growth conditions of nanoparticles is presented. Further, the designed P-PVDF/ZnO PENG was demonstrated as an energy generator to successfully power nine commercial LEDs. Thus, this approach reveals the critical role of hierarchical structures and processing technology in the development of high-performance piezoelectric nanomaterials.

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Enhancement of piezoelectric energy-harvesting capacity of electrospun β-PVDF nanogenerators by adding GO and rGO

Cited by 44 publications

References 71 publications

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

A Review of Piezoelectric PVDF Film by Electrospinning and Its Applications

Graphene-Coated PVDF/PAni Fiber Mats and Their Applications in Sensing and Nanogeneration

Enhancement of Piezoelectric Properties of Flexible Nanofibrous Membranes by Hierarchical Structures and Nanoparticles

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