Textile-based triboelectric nanogenerator with alternating positive and negative freestanding grating structure

Paosangthong, Watcharapong; Wagih, Mahmoud; Torah, Russel; Beeby, Steve

doi:10.1016/j.nanoen.2019.104148

Cited by 78 publications

(38 citation statements)

References 48 publications

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“…It is noted that there are alternative ways to generate high-frequency current pulses without any switching mechanisms. One of the most conventional ways is by using the grating TENG working in sliding mode [ 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 ]. By using the proper design for the width and spacing of the grating electrode, high-frequency current pulses can be generated even with slow sliding.…”

Section: The Development Of Teng-based Self-powered Nerve Stimulatmentioning

confidence: 99%

A Review and Perspective for the Development of Triboelectric Nanogenerator (TENG)-Based Self-Powered Neuroprosthetics

Wang

Zeng

et al. 2020

Micromachines

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Neuroprosthetics have become a powerful toolkit for clinical interventions of various diseases that affect the central nervous or peripheral nervous systems, such as deep brain stimulation (DBS), functional electrical stimulation (FES), and vagus nerve stimulation (VNS), by electrically stimulating different neuronal structures. To prolong the lifetime of implanted devices, researchers have developed power sources with different approaches. Among them, the triboelectric nanogenerator (TENG) is the only one to achieve direct nerve stimulations, showing great potential in the realization of a self-powered neuroprosthetic system in the future. In this review, the current development and progress of the TENG-based stimulation of various kinds of nervous systems are systematically summarized. Then, based on the requirements of the neuroprosthetic system in a real application and the development of current techniques, a perspective of a more sophisticated neuroprosthetic system is proposed, which includes components of a thin-film TENG device with a biocompatible package, an amplification circuit to enhance the output, and a self-powered high-frequency switch to generate high-frequency current pulses for nerve stimulations. Then, we review and evaluate the recent development and progress of each part.

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Section: The Development Of Teng-based Self-powered Nerve Stimulatmentioning

confidence: 99%

A Review and Perspective for the Development of Triboelectric Nanogenerator (TENG)-Based Self-Powered Neuroprosthetics

Wang

Zeng

et al. 2020

Micromachines

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“…Body-centric energy harvesting has been extensively explored. Piezoelectric [3], thermoelectric [4] and triboelectric energy harvesters [5], have been reported for harvesting energy generated from the human body. Furthermore, ambient harvesters such as solar cells [6], as well as microwave and mmWave rectennas have been designed on textile substrates [7,8], towards achieving power autonomy of wearable devices.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, ambient harvesters such as solar cells [6], as well as microwave and mmWave rectennas have been designed on textile substrates [7,8], towards achieving power autonomy of wearable devices. A key limitation of such harvesters is their reliance on certain body-positions where the energy is generated such as the foot [3] or friction points [5]. Thus, the challenge of on-body position-independent energy transfer on textiles remains unsolved.…”

Section: Introductionmentioning

confidence: 99%

“…While established applications of inductive WPT are omnipresent in the consumer electronics market and electric vehicle charging, the next generations of WPT devices will be based on resonant coupling to allow for increased separation between the transmitter and the receiver, in addition to non-coupled methods, through far-field propagation of WPT-specific waveforms. A particularly interesting platform for WPT is wearable e-textile applications, where establishing a real connection to the power supply is not feasible, and traditional energy harvesters require complex fabrication techniques to be integrated in textiles and flexible materials, or require specific on-body positioning [3][4][5][6]. Therefore, delivering power wirelessly to a wearable device represents a simple way of charging wearable nodes [14].…”

Section: Introductionmentioning

confidence: 99%

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Separation-Independent Wearable 6.78 MHz Near-Field Radiative Wireless Power Transfer using Electrically Small Embroidered Textile Coils

2020

Self Cite

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Achieving a wireless power transfer (WPT) link insensitive to separation is a key challenge to achieving power autonomy through wireless-powering and wireless energy harvesting over a longer range. While coupled WPT has been widely used for near-field high-efficiency WPT applications, the efficiency of the WPT link is highly sensitive to separation and alignment, making it unsuitable for mobile systems with unknown or loose coupling such as wearables. On the other hand, while ultra-high frequency (UHF) and microwave uncoupled radiative WPT (0.3–3 GHz) enables meters-long separation between the transmitter and the receivers, the end-to-end efficiency of the WPT link is adversely limited by the propagation losses. This work proposes radiative WPT, in the 6.78 MHz license-free band, as a hybrid solution to separation-independent WPT, thus mitigating the losses associated with coil separation. Resonant electrically small antennas were fabricated using embroidered textile coils and tuned using L-matching networks, for wearable WPT. The antenna’s efficiency and near-fields have been evaluated numerically and experimentally. The proposed WPT link achieves a stable forward transmission of S 21 > − 17 dB and S 21 > − 28 dB, independent of coil separation on the XZ and XY planes respectively, in a 27 m 3 volume space. The presented approach demonstrates the highest WPT link efficiency at more than 1-m separation and promises higher end-to-end efficiency compared to UHF WPT.

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“…Textile-based ferroelectric [1], tribolectric [2] and thermoelectric [3] energy harvesting has been previously reported. Furthermore, near-field and far-field wireless power transfer (WPT) has been reported using textile-based coils [4], [5] and flexible antennas integrated in textiles [6] or fabricated using conductive fabrics [7], [8].…”

Section: Introductionmentioning

confidence: 99%

Wearable E-Textile Wireless RF Power Supply based on a Textile Supercapacitor and a Flexible Rectenna Filament

Wagih

Hillier

Sheng

et al. 2020

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)

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Sustainable battery-free operation is a requirement for wearable electronic textiles. This work presents a complete wearable textile-based radio frequency energy harvester and an energy storage module. The rectifying-antenna (rectenna) receives incident sub-1 GHz RF power from a license-free transmitter and converts it to DC with up to 90% efficiency and 8 V DC output from under 4 mW of RF power. A spraycoated textile 7.1 mF supercapacitor is integrated as an energy storage unit. Electrochemical Impedance Spectroscopy has been used to characterize the supercapacitor's impedance and a fourbranch circuit model has been obtained. The 7.1 mF textile supercapacitor has been demonstrated charging to 1 V (3.55 mJ) in under 11 seconds at 1.2 m separation from a wireless power source, demonstrating over 15% end-to-end efficiency, the highest charging efficiency of a textile supercapacitor from an integrated flexible energy source.

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Textile-based triboelectric nanogenerator with alternating positive and negative freestanding grating structure

Cited by 78 publications

References 48 publications

A Review and Perspective for the Development of Triboelectric Nanogenerator (TENG)-Based Self-Powered Neuroprosthetics

A Review and Perspective for the Development of Triboelectric Nanogenerator (TENG)-Based Self-Powered Neuroprosthetics

Separation-Independent Wearable 6.78 MHz Near-Field Radiative Wireless Power Transfer using Electrically Small Embroidered Textile Coils

Wearable E-Textile Wireless RF Power Supply based on a Textile Supercapacitor and a Flexible Rectenna Filament

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