Facile and robust triboelectric nanogenerators assembled using off-the-shelf materials

Mallineni, Sai Sunil Kumar; Behlow, Herbert; Dong, Yongchang; Bhattacharya, Sriparna; Rao, Apparao M.; Podila, Ramakrishna

doi:10.1016/j.nanoen.2017.03.043

Cited by 44 publications

(18 citation statements)

References 28 publications

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“…One notable by-product here was a determination that the output characteristics depicted in Fig. S8 are superior to the characteristics of TENGs reported in the literature [6].…”

Section: Resultsmentioning

confidence: 74%

“…Triboelectricity is emerging as a possible power source for portable electronics [1][2][3][4][5][6], sensors [7][8][9][10][11][12][13][14][15][16][17][18], and other wearable devices [19][20][21][22][23][24]. Triboelectric nanogenerators (TENGs) harness the contact induced electrostatic potential generated across the surfaces of two dissimilar materials to convert waste mechanical energy into usable electrical energy.…”

Section: Introductionmentioning

confidence: 99%

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A Wireless Triboelectric Nanogenerator

Mallineni

Dong

Behlow

et al. 2017

Advanced Energy Materials

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109

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Abstract:We demonstrate a new paradigm for the wireless harvesting of mechanical energy via a 3D-printed triboelectric nanogenerator (TENG) which comprises a graphene polylactic acid (gPLA) nanocomposite and Teflon. The synergistic combination of eco-friendly PLA with graphene in our TENG exhibited an output voltage > 2 kV with an instantaneous peak power of 70 mW, which in turn generated a strong electric field to enable the wireless transmission of harvested energy over a distance of 3 m. Specifically, we demonstrate wireless and secure actuatation of smart-home applications such as smart tint windows, temperature sensors, liquid crystal displays, and security alarms either with a single or a specific user-defined passcode of mechanical pulses (e.g., Fibonacci sequence). Notably, such high electric output of a gPLA-based TENG enabled unprecedented wireless transmission of harvested mechanical energy into a capacitor, thus obviating the need for 2 additional electronics or energy sources. The scalable additive manufacturing approach for gPLA-based TENGs, along with their high electrical output can revolutionize the present method of harnessing the mechanical energy available in our environment.

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“…One notable by-product here was a determination that the output characteristics depicted in Fig. S8 are superior to the characteristics of TENGs reported in the literature [6].…”

Section: Resultsmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

A Wireless Triboelectric Nanogenerator

Mallineni

Dong

Behlow

et al. 2017

Advanced Energy Materials

Self Cite

109

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“…Mallineni and co‐workers fabricated a TENG using PET, ITO, and kapton . Here, ITO coated PET acted as both the top and bottom electrodes.…”

Section: Modes Of Operationmentioning

confidence: 99%

“…Mallineni and co-workers fabricated aT ENG using PET, ITO,a nd kapton. [45] Here, ITOc oated PET acted as botht he top and bottom electrodes.O no ne side,a dhesive kapton tap was attached to the ITO and other side ITO itself acted as the triboelectric surface.T he two surfaces were separated by four Pyrex insulting spacers.T he fabricatedT ENG was stable up to 20 000 cycles.T he electrical outputs were ob-served to be 480 Va nd 50 mAf or V OC and I SC ,r espectively, with 490 mWcm À2 of power density without any nanopatterning. At 40 MW load resistance and 50 Nf orce,t he authors observed am aximum peak power of % 1.7 mW.T hey also performed finite element analysis using COMSOL Multiphysics to estimate the maximumo utput voltages.T he practicability of the TENG was investigatedb yp owering electronic calculators,lighting LEDs,etc.…”

Section: Modes Of Operation 31 Vertical Contact Separation Modementioning

confidence: 99%

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Triboelectric Nanogenerators for Mechanical Energy Harvesting

Kaur

Pal

2018

Energy Tech

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Energy is the essential requirement of daily life. Due to the diminution of the energy sources, it is necessary develop devices that can harvest the wasted energy that exists in the ambient environment. To address this, triboelectric nanogenerators (TENGs) have been developed as an innovative paradigm for energy harvesting. They can harvest the various forms of mechanical energy, including vibrations, walking, ocean waves, human motion, rain drops, flowing water, the motion of an automobile, wind, rotational energy, and mechanical triggering. TENGs can combine the contact electrification and electrostatic induction for energy conversion and operate on four fundamental modes for conversion of mechanical energy into electrical energy to power small‐scale electronics including mobile phones and sensors. The electrical outputs obtained from TENGs depend on the friction of materials that are selected from the triboelectric series on the basis of their electronegativity and electropositivity. Here, a comprehensive overview of the fundamentals of nanogenerators, various operating modes of TENGs and the design of devices that include them, and the performance improvement of this recently emerged technology is presented.

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Fullerene‐Enhanced Triboelectric Nanogenerators

Parajuli

Sharma

Behlow

et al. 2020

Adv Materials Technologies

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Triboelectric nanogenerators (TENGs) convert mechanical energy, e.g., from human motions, into electrical power. The mechanical force brings two triboelectric materials with different electron affinities into contact, resulting in a voltage that can be used to power a device. Although progress has been made in identifying high‐performance triboelectric materials (e.g., polytetrafluoroethylene, MXenes, polyethylene terephthalate (PET), graphene‐impregnated polymers, and polyimide), the search for better triboelectric materials continues in order to harvest mechanical energy efficiently. Here, it is demonstrated that the output performance of a TENG can be enhanced by coating its triboelectric material surface with an important class of carbons, viz., zero‐dimensional C60 fullerene, which is known for its high electron affinity. Specifically, a C60 fullerene‐based TENG (F‐TENG) is fabricated and evaluated that supports a high open‐circuit voltage of ≈1.6 kV, short‐circuit current of ≈100 µA, instantaneous peak power density of ≈38 W m−2, and charging of a 1 µF capacitor to 180 V under 8 min. Because of the superior power output of the F‐TENG, a digital watch can be powered continuously in real‐time, a task that cannot be performed with a similar‐sized TENG comprising PET and polyimide. Notably, a novel methodology based on the analysis of the TENG output waveforms is presented for determining the triboelectric charge, which can then be used to rank the electrode material in the tribolelectric series.

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Facile and robust triboelectric nanogenerators assembled using off-the-shelf materials

Cited by 44 publications

References 28 publications

A Wireless Triboelectric Nanogenerator

A Wireless Triboelectric Nanogenerator

Triboelectric Nanogenerators for Mechanical Energy Harvesting

Fullerene‐Enhanced Triboelectric Nanogenerators

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