Hybrid nanogenerator and enhancement of water–solid contact electrification using triboelectric charge supplier

Wijewardhana, K. Rohana; Shen, Tong; Jayaweera, E.N.; Shahzad, Amir; Song, Jang‐Kun

doi:10.1016/j.nanoen.2018.08.016

Cited by 27 publications

(13 citation statements)

References 37 publications

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“…As a result, triboelectric charges can be used to induce electric current when continuous repeated contact and de-contact of these materials is performed, and it is possible only when this triboeffect is combined with electrostatic induction phenomenon by fabricating electrodes on the back side of these materials. Here, we have considered PTFE as it forms high hydrophobic layer, generates greater number of negative charges as compared to other materials, and generates higher efficiency [4]. Also, we have considered copper as it is commonly available and cheap as compared to other materials [21].…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, it also swaps the heavy, periodic washing, high maintenance cost and health concerned batteries [2,3]. Typically, nano-generators are getting famous in the last decade due to the recent advent of Internet-of-Things era with mobile electronic devices [4]. Therefore, different energy nano-generators have been designed such as piezoelectric [5][6][7][8], triboelectric [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], electric double layer modulation methods [28][29][30][31][32], and reversal of famous electrowetting phenomenon [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

“…First triboelectric nanogenerator was proposed by Z. L. Wang in 2012 [9], claiming that it is an efficient device at low frequency, economical, light weighted, many working configurations/modes and cheap materials as compared to piezoelectric materials [5,9]. Recently, we have also successfully demonstrated some triboelectric nanogenerators to scavenge electricity from the water droplets, human hair, human skin and bubbles inside the water [4,12,15,17]. Moreover, the researchers have fabricated triboelectric generator (TEG) by using the material, polytetrafluoroethylene (PTFE) and polyamide 6 (PA 6) [3].…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of the Triboelectrification Using Artificial Surface Charges

et al. 2020

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Triboelectrification is a novel technology to harvest electricity from unexploited environmental energy. Its efficiency depends on the area, morphology and charges on the in-contact surfaces. Many studies are carried out in order to increase the efficiency of the triboelectric generators by increasing the surface area or varying the morphology but the charge density is not properly focused until date. Herein, we will discuss the effect of the artificial charges induced on the in-contact surface. For that purpose, plasma treatment was used to increase the surface charge density of the in-contact surface. The increment in the charge density actually helped us to increase the efficiency of triboelectric generator even without changing the dimensions of the device. The output power was increased up to two folds as compared to the untreated device. At the end, we also charged the capacitor in order to compare the charge storing efficiencies of both devices. We found that the untreated device and the plasma treated device (15 min and 30 min) stored voltages up to 6 V, 9 V and 12 V respectively. This type of study will surely support the researchers to enhance the triboelectric current generation efficiency even without increasing the size of the device.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhancement of the Triboelectrification Using Artificial Surface Charges

et al. 2020

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“…Solid-Liquid contact electrification has become a promising method to convert water-solid interfacial energy to electrical energy. Raindrops, ocean waves, and rising air bubbles can be used to convert interfacial energy to electrical energy [1][2]. However, the energy harvesting efficiency of water-solid contact electrification is weaker than solid-solid contact electrification.…”

Section: Extended Abstractmentioning

confidence: 99%

Multiple Electrodes-based Bubble Motion Active Transducer for Effective Electrical Energy Harvesting

Wijewardhana¹,

Ekanayaka²,

Jayaweera³

2021

International Conference on Energy Harvesting, Storage, and Transfer

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“…[ 166 ] According to the configuration of the electrodes, single‐electrode mode TENG and freestanding mode TENG were developed. [ 167–173 ] Single‐electrode mode TENG serves as an impressive solution to leveraging moving droplets as sources. With regarding its specific working mechanism, the contact electrification between the falling droplets and dielectric materials causes the surface (hydrophobic or superhydrophobic) to be charged.…”

Section: Hydroelectric Effectmentioning

confidence: 99%

Electrohydrodynamic and Hydroelectric Effects at the Water–Solid Interface: from Fundamentals to Applications

Song

et al. 2020

Adv Materials Inter

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Electrohydrodynamic and hydroelectric effects at the water–solid interface are of fundamental importance and also underpin many important applications ranging from the controlled liquid transport by applying an external electric field to the power generation from moving liquid. Also, recent advances in micro/nanofabrication and nanomaterials provide additional dimension and flexibility in controlling electrohydrodynamic and hydroelectric effects at the water–solid interface to achieve preferred functions. Despite extensive progress, the cohesive and unified review of these two largely opposite effects is currently lacking. This review first discusses the important common foundations underpinning these two effects such as contact electrification and electric double layer (EDL), then takes a parallel approach to elaborate the electrohydrodynamic processes such as electrically induced liquid flow, wetting, and droplet motion, as well as the hydroelectricity resulting from their opposite processes. The practical applications and the unsolved challenges related to these two interfacial effects are also highlighted.

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Hybrid nanogenerator and enhancement of water–solid contact electrification using triboelectric charge supplier

Cited by 27 publications

References 37 publications

Enhancement of the Triboelectrification Using Artificial Surface Charges

Enhancement of the Triboelectrification Using Artificial Surface Charges

Multiple Electrodes-based Bubble Motion Active Transducer for Effective Electrical Energy Harvesting

Electrohydrodynamic and Hydroelectric Effects at the Water–Solid Interface: from Fundamentals to Applications

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