Enhancement of output power density in a modified polytetrafluoroethylene surface using a sequential O2/Ar plasma etching for triboelectric nanogenerator applications

Prada, Teerayut; Harnchana, Viyada; Lakhonchai, Anthika; Chingsungnoen, Artit; Poolcharuansin, Phitsanu; Chanlek, Narong; Klamchuen, Annop; Thongbai, Prasit; Amornkitbamrung, Vittaya

doi:10.1007/s12274-021-3470-4

Cited by 68 publications

(44 citation statements)

References 65 publications

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“…The scanning electron microscope (SEM) image of the nylon fabric surface is shown in Figure c. In order to increase the contact area between two friction layers and improve the triboelectric charge density on the surface, inductively coupled plasma (ICP) was applied on the surface of the nylon fabric and PTFE to create nanostructure . The SEM image of the nanostructure of the nylon fabric is shown in Figure d.…”

Section: Resultsmentioning

confidence: 99%

“…In order to increase the contact area between two friction layers and improve the triboelectric charge density on the surface, inductively coupled plasma (ICP) was applied on the surface of the nylon fabric and PTFE to create nanostructure. 34 The SEM image of the nanostructure of the nylon fabric is shown in Figure 1d. As shown in Figure 1e, the original water contact angle of the nylon fabric is 109.8°, while the ICP-etched nylon fabric (ICP-NF) has a contact angle of 139.5°(Figure 1f).…”

Section: Resultsmentioning

confidence: 99%

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Triboelectric Patch Based on Maxwell Displacement Current for Human Energy Harvesting and Eye Movement Monitoring

et al. 2022

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The forthcoming wearable health care devices garner considerable attention because of their potential for monitoring, treatment, and protection applications. Herein, a self-powered triboelectric patch was developed using polytetrafluoroethylene rubbed with nylon fabric. The triboelectric patch can maintain a stable electrostatic field, due to the excess electrification on the surface of the triboelectric layer. The designed triboelectric nanogenerator (TENG) output watt density can reach about 485 mW/m2 with added resistance of 11 kΩ. Additionally, the performance of the triboelectric patch allowed eye movement monitoring. The maximum voltage could reach 80 V at the vertical distance of 20 mm between the frictional layer and collector. The triboelectric patch not only can power a digital watch for potential wearable applications but also can be integrated to monitor eye movements during sleep. This work proposed a mechanism for human movement energy harvesting, which may be used for self-powered smart wearable health equipment and Maxwell displacement current wireless sensors.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Triboelectric Patch Based on Maxwell Displacement Current for Human Energy Harvesting and Eye Movement Monitoring

et al. 2022

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“…The result is a formation of unstable fragments containing carbon, fluorine, and oxygen. Known fragments of such type include oxy (x = 1) and peroxy (x = 2) radicals of formulae CF3x, FC(O)Ox, CF3C(O)Ox and CF3OC(O)Ox [34]. Such moieties desorb from the surface, which results in etching.…”

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

Surface Characterization of Polytetrafluoroethylene (PTFE) Substrate after Oxygenated Plasma Treatment towards Potential Food Processing Application

Abidin¹,

Hashim²,

Zubairi³

2022

Preprint

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The spray drying process causes the buildup of an unspecified and unique pattern of wall deposits on the wall. The powder recovery of fruit juice by spray dryer is associated with stickiness problems because of the nature of food which contains low molecular weight sugars and organic acids, which have a low glass transition temperature (Tg). The surface properties of oxygen plasma treated-PTFE substrate were evaluated by using the different parameters of Plasma Enhanced Chemical Vapour Deposition (PECVD) prior to spray drying analysis. In this study, the fabrication method of nearly perfect superhydrophobic surfaces through plasma treatment with oxygen gas was generated and utilized. The plasma-treated PTFE were deposited from a fixed flow rate of oxygen gas with 30 cm3/min by varying the deposition time from 1 to 15 minutes to induce the hydrophobic surface of the PTFE substrate. The characterization techniques used to determine the morphology and chemical bonding of the substrate are field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR), respectively. The hydrophobicity of the glass samples was determined by the water droplet contact angle. Sample prepared at radio frequency (RF) power of 90W for 15 minutes duration of treatment time showed porous and spongy like microstructure which correlates with the best performance of a good contact angle which creates the superhydrophobicity regime (171o). Surface morphology analysis using scanning electron microscopy (SEM) showed changes in its roughness in the surface-treated glass substrate. The success of this method produced a huge potential for solving most of the food processing issues which relate to biofouling (e.g., powder stickiness) that would otherwise struggle to improve high productivity and recovery.

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“…This can be done by increasing the surface areas and charge retention abilities or capacitances of the triboelectric materials [ 25 , 26 ]. There are many different ways to modify triboelectric materials for enhancing the power output of the TENG, including surface modification, such as plasma etching [ 27 ], micro/nano-patterning [ 28 , 29 ], soft lithography [ 30 ], and internal structure modification into porous or sponge structures [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Triboelectric Material Based on Natural Rubber and Activated Carbon from Human Hair

et al. 2022

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The triboelectric nanogenerator (TENG) has emerged as a novel energy technology that converts mechanical energy from surrounding environments to electricity. The TENG fabricated from environmentally friendly materials would encourage the development of next-generation energy technologies that are green and sustainable. In the present work, a green triboelectric material has been fabricated from natural rubber (NR) filled with activated carbon (AC) derived from human hair. It is found that the TENG fabricated from an NR-AC composite as a tribopositive material and a poly-tetrafluoroethylene (PTFE) sheet as a tribonegative one generates the highest peak-to-peak output voltage of 89.6 V, highest peak-to-peak output current of 6.9 µA, and can deliver the maximum power density of 242 mW/m2. The finding of this work presents a potential solution for the development of a green and sustainable energy source.

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Enhancement of output power density in a modified polytetrafluoroethylene surface using a sequential O2/Ar plasma etching for triboelectric nanogenerator applications

Cited by 68 publications

References 65 publications

Triboelectric Patch Based on Maxwell Displacement Current for Human Energy Harvesting and Eye Movement Monitoring

Triboelectric Patch Based on Maxwell Displacement Current for Human Energy Harvesting and Eye Movement Monitoring

Surface Characterization of Polytetrafluoroethylene (PTFE) Substrate after Oxygenated Plasma Treatment towards Potential Food Processing Application

Eco-Friendly Triboelectric Material Based on Natural Rubber and Activated Carbon from Human Hair

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