Rotational wind power triboelectric nanogenerator using aerodynamic changes of friction area and the adsorption effect of hematoxylin onto feather based on a diversely evolved hyper-branched structure

Cho, Yujang; Lee, Kyeong-Soo; Park, Gwan Soo; Ahn, Seongcheol; Kim, Wook; Kim, Junseo; Park, Si Young; Sun, Jingzhe; Jung, Chan-Hee; Chung, Jikang; Chang, Mincheol; Choi, Dukhyun; Park, Jong-Jin

doi:10.1016/j.nanoen.2019.04.083

Cited by 25 publications

(12 citation statements)

References 37 publications

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“…Owning to its advantages such as high efficiency, low cost, lightweight, abundant structural, and material choices, the TENG has found vast applications as micro/ nano power source by harvesting various kinds of mechanical energy from the external environment, such as human walking, vibration, heartbeats, wind, and so on. [54][55][56][57][58][59][60][61][62] Biomechanical energy is widespread but usually wasted in our daily life, and plenty of researches have been explored by using TENGs for harvesting this lowfrequency energy. Recently, Yi et al reported a shapeadaptive TENG consisting of an elastic polymer cover and a conductive liquid ( Figure 8A).…”

Section: Micro/nano Power Sourcesmentioning

confidence: 99%

Recent progress of triboelectric nanogenerators: From fundamental theory to practical applications

Luo

Wang

2020

EcoMat

240

151

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Section: Micro/nano Power Sourcesmentioning

confidence: 99%

Recent progress of triboelectric nanogenerators: From fundamental theory to practical applications

Luo

Wang

2020

EcoMat

240

151

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show abstract

“…However, the development of TENG still faces many challenges, such as complex manufacturing processes and expensive processing equipment [16]. In 2019, Zhu et al presented proposed a single electrode nanogenerator by sputtering copper atoms on a feather [17]. In 2022, Han et al designed and fabricated an improved rotary triboelectric nanogenerator using rabbit fur-based softcontact with segmented structure for harvesting low-speed wind energy [18].…”

Section: Introductionmentioning

confidence: 99%

P‐12.9: Self‐powered Large Aperture Liquid Crystal Lens for Light Field Imaging Based on Fur Triboelectric Nanogenerators

Chen,

Kang,

Peng

et al. 2023

Symp Digest of Tech Papers

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Liquid crystal (LC) is an intermediate state compound between liquid and crystal, which has the anisotropy of crystal molecules while having the fluidity of liquid. It is a cutting‐edge technology in optoelectronics. LC lens is an electrically controlled focusable gradient refractive index lens. In light field displays, LC lenses with diameters in the millimetre range can cover more areas. Therefore, we propose a large aperture (LA) liquid crystal (LC) lens with an electrically controlled focal length of 4 mm in diameter. LC lenses with large apertures require large voltages and there are certain safety issues and equipment requirements. We have therefore utilised a triboelectric nanogenerator (TENG) that can harvest energy from the environment and convert it into usable electrical energy. TENG has the advantages of being small and portable and enables the use of renewable energy. In this paper, we propose a new type of feather TENG (F‐TENG) with a positive friction electrode of feathers and a negative electrode of polytetrafluoroethylene (PTFE) mixed with graphene, which enables the use of F‐TENG to power LC lens systems, thus providing a new application idea for the display field.

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“…Therefore, in light of the serious global energy depletion problem, TENGs—which are powered through natural wind or wave energy can help in the transition to a new eco‐friendly energy era. [ 8,9 ] At present, TENGs are not directly used in continuous electronic devices because of their low output current performance as well as their vulnerability to external environmental conditions such as temperature and humidity. [ 10 ] However, since Wang et al.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, in light of the serious global energy depletion problem, TENGswhich are powered through natural wind or wave energy can help in the transition to a new eco-friendly energy era. [8,9] At present, TENGs are not directly used in continuous electronic devices because of their low output current performance as well as their vulnerability to external environmental conditions such as temperature and humidity. [10] However, since Wang et al first proposed a TENG in 2012, the performance of TENGs has been continuously improved through various strategies, such as structure optimization, surface modification, and the selection of materials that are particularly suitable for triboelectrification.…”

mentioning

confidence: 99%

Controllable Triboelectric Series Using Gradient Positive and Negative Charge‐Confinement Layer with Different Particle Sizes of Mesoporous Carbon Materials

et al. 2022

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As a method to maximize the energy efficiency of triboelectric nanogenerators (TENGs), high‐voltage charge injection (HVCI) on the surface is a simple and effective method for increasing surface charge densities. In this study, positive and negative triboelectric series are controlled using a 3‐layer gradient charge‐confinement wherein the particle sizes of the mesoporous carbon spheres (mCSs) are sequentially arranged depending on the external surface area of the mCSs. In the gradient charge‐confinement layers of this study, the mCS with different sizes perform charge transport from the surface to a deep position during HVCI while mitigating the charge loss through charge confinement to induce the high space charge densities. Through this process, the output voltage—which is initially 15.2 V—is measured to be 600 V after HVCI, thus representing an increase of about 40 times. Further, to amplify the low output current, which is a disadvantage of triboelectric energy, two types of electrical energy—triboelectric and electromagnetic energy—are produced in single mechanical motion. As a result, the output current produced by the cylindrical TENG and electromagnetic generator is recorded as being 1300 times higher, increasing from 12.8 µA to 17.5 mA.

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Rotational wind power triboelectric nanogenerator using aerodynamic changes of friction area and the adsorption effect of hematoxylin onto feather based on a diversely evolved hyper-branched structure

Cited by 25 publications

References 37 publications

Recent progress of triboelectric nanogenerators: From fundamental theory to practical applications

Recent progress of triboelectric nanogenerators: From fundamental theory to practical applications

P‐12.9: Self‐powered Large Aperture Liquid Crystal Lens for Light Field Imaging Based on Fur Triboelectric Nanogenerators

Controllable Triboelectric Series Using Gradient Positive and Negative Charge‐Confinement Layer with Different Particle Sizes of Mesoporous Carbon Materials

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