Dipole-moment-induced effect on contact electrification for triboelectric nanogenerators

Bai, Peng; Zhu, Guang; Zhou, Yu; Wang, Sihong; Ma, Jingling; Zhang, Gong; Wang, Zhong Lin

doi:10.1007/s12274-014-0461-8

Cited by 185 publications

(123 citation statements)

References 35 publications

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“…For the rotator and the stator, acrylic sheet with thickness of 4 mm was shaped by a laser cutter to form disk substrate with diameter of 150 mm. Four fan-shaped Al electrodes with central angle of 30 were attached on the stator, which was fixed on the iron rod axis, and four copper conductors were drawn from the Al electrodes. For the rotator, four fan-shaped PTFE films with thickness of 50 μm and central angle of 30 were attached on the rotator, as is illustrated in Figure 1a.…”

Section: Assembling Of the D-teng And W-tengmentioning

confidence: 99%

“…Four fan-shaped Al electrodes with central angle of 30 were attached on the stator, which was fixed on the iron rod axis, and four copper conductors were drawn from the Al electrodes. For the rotator, four fan-shaped PTFE films with thickness of 50 μm and central angle of 30 were attached on the rotator, as is illustrated in Figure 1a. For the W-TENG, four wheel blades with 50 mm in length, 20 mm in width, and 4 mm in thickness were made by laser cutter.…”

Section: Assembling Of the D-teng And W-tengmentioning

confidence: 99%

“…[28] In previous reports, the researchers usually use a single energy harvesting device to grab a certain energy from flowing water and air. [29,30] However, in our demonstrations, to harvest multiple energies simultaneously, we have integrated D-TENG, W-TENG, and EMG into a hybrid energy harvester. In the W-TENG, we used PVDFand PTFE with nanostructures to enhance the forward output, which is better than by just using PTFE.…”

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Intelligent Sensing System Based on Hybrid Nanogenerator by Harvesting Multiple Clean Energy

et al. 2017

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The inexhaustible mechanical kinetic energy can be extracted from wind and flowing water. Besides, flowing water also possesses electrostatic energy owing to the triboelectric charges caused by contacting with surrounding media, such as air. Here, a rotating hybridized triboelectric nanogenerator (TENG) has been established, by comprising of a water-TENG (W-TENG), a disk-TENG (D-TENG), and an electromagnetic generator (EMG), which has been explored for simultaneously harvesting energies from flowing water and wind. The W-TENG is fabricated by wheel blades, polyvinylidene fluoride (PVDF), superhydrophobic polytetrafluoroethylene (PTFE), and aluminum to harvest the electrostatic energy. Moreover, the flowing water and wind impact on the wheel blades also causes the rotation motion of D-TENG and EMG, resulting in being converted into electricity. At the rotation speed of 200 rpm, the short circuit current of D-TENG and EMG can reach 0.4 μA and 7 mA, respectively. The open circuit voltage of W-TENG can be up to 10 V at a flowing water rate of 60 ml s À1. Besides, the hybridized NG is demonstrated to harvest water and wind energy and to act as a power source to charge a lithium battery or capacitor, which can drive LEDs, PH monitoring system, and wireless temperature and humidity sensing system. All these results show the potentials of the hybridized NG for harvesting multiple types of energies from the environment and constructing different self-powered systems.Because of the rapid energy consumption and shortage in fossil fuel, energy crisis is becoming more and more serious than ever before. For the sustainable development of modern society, harvesting different kinds of energies from ambient environment has attracted increasing attention. [1][2][3][4][5][6][7][8] Recently, the hybridized TENG has been explored as a new technology to harvest various energies, such as vibration, [9,10] air flow, [11,12] water waves, [13,14] and rotation, [15,16] which is mainly based on contact electrification effect and electrostatic induction. [17][18][19] Previously, most people used two solid materials contacting periodically to generate triboelectric charges on their interface. [20][21][22][23][24][25] Recently, triboelectric charges that are created between the interfaces of water and air are used to develop TENG widely. [26,27] The TENGs have been demonstrated a promising approach for scavenging energy from surrounding flowing medium. On the other hand, the flowing water and air has not only mechanical energy, but also electrostatic energy, which comes from the triboelectric charges in water generated during the process of contacting with pipe or air. [28] In previous reports, the researchers usually use a single energy harvesting device to grab a certain energy from flowing water and air. [29,30] However, in our demonstrations, to harvest multiple energies simultaneously, we have integrated D-TENG, W-TENG, and EMG into a hybrid energy harvester. In the W-TENG, we used PVDFand PTFE with nanostructures to enhance the forward ...

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Section: Assembling Of the D-teng And W-tengmentioning

confidence: 99%

Section: Assembling Of the D-teng And W-tengmentioning

confidence: 99%

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confidence: 99%

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Intelligent Sensing System Based on Hybrid Nanogenerator by Harvesting Multiple Clean Energy

et al. 2017

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“…[6][7][8][9] While PENG converts the deformation of the piezoelectric material into electricity, TENG converts relative motion into electricity through contact electrification and electrostatic induction. 10 The available ambient mechanical energy can be provided to the NG in two forms, i.e., relative motion and material deformation, so it is advantageous to combine a TENG and PENG.…”

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confidence: 99%

Piezoelectric peptide-based nanogenerator enhanced by single-electrode triboelectric nanogenerator

2017

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Peptide has recently been demonstrated as a sustainable and smart material for piezoelectric energy conversion. Although the power output was improved compared to other biomaterials, the use of a piezoelectric device alone can only capture the energy from the minute deformation in materials. In comparison, the triboelectric effect can convert mechanical energy from large motion. Consequently, utilizing both piezoelectric and triboelectric effects is of significant research interest due to their complementary energy conversion mechanisms. Here we demonstrated a hybrid nanogenerator that combined a peptide-based piezoelectric nanogenerator with a single-electrode triboelectric nanogenerator. Our device structure enabled the voltage and current outputs of each individual type of nanogenerator to be superposed in the hybrid nanogenerator, producing overall constructive outputs. The design of our device also enabled a simplified configuration of hybrid nanogenerator. This study is important not only for the enhancement of peptide-based piezoelectric device but also for the future design of hybrid piezoelectric and triboelectric nanogenerators.

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“…Then, a vertical contact-separation mode TENG can be introduced to work together with the PENG thus converting mechanical energy into electricity using both piezoelectric and triboelectric effects. [26][27][28][29][30][31][32][33][34][35] Generally, there are three different structures for the PE-TENG: two-terminal structure in which the piezoelectric material also works as one friction material, [26][27][28] three-terminal structure in which one electrode is shared by the PENG and TENG, [29][30][31][32] and four-terminal structure in which the PENG and TENG works independently. [33][34][35] For each structure, the output performance of the hybrid nanogenerator can be modulated (enhanced or reduced) according to the polarity of the piezoelectric material.…”

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confidence: 99%

Coupling of Piezoelectric and Triboelectric Effects: from Theoretical Analysis to Experimental Verification

Han

Chen

et al. 2015

Adv Elect Materials

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process is still unclear and even controversial, [8][9][10] nanogenerators can be made utilizing this effect in conjunction with electrostatic induction. After the fi rst triboelectric nanogenerator (TENG) proposed in 2012, [ 11 ] the peak power density of this kind of nanogenerator increases exponentially from 3.67 mW m −2 to 313 W m −2 within 12 months [ 12 ] thanks to the material selection, [ 13 ] morphology optimization, [ 14 ] structure design, [ 15 ] surface modifi cation, [ 16 ] theoretical guidance, [17][18][19] etc. Besides, TENGs cannot only be used as a power source for driving electronic devices, [ 20 ] promoting electrochemical processes, [ 21 ] solving environmental issues, [ 22 ] but also as a self-powered sensor to detect the change of angle, humidity, ion concentration, etc. [23][24][25] Since both the PENG and TENG have the capability to convert mechanical movement into electricity, the combination of both effects is promising in improving the output performance of nanogenerators. To realize the piezoelectric-triboelectric hybrid nanogenerator (PE-TENG), fl exible piezoelectric materials (e.g., ZnO, PVDF) were usually utilized to form the PENG. Then, a vertical contact-separation mode TENG can be introduced to work together with the PENG thus converting mechanical energy into electricity using both piezoelectric and triboelectric effects. [26][27][28][29][30][31][32][33][34][35] Generally, there are three different structures for the PE-TENG: two-terminal structure in which the piezoelectric material also works as one friction material, [26][27][28] three-terminal structure in which one electrode is shared by the PENG and TENG, [29][30][31][32] and four-terminal structure in which the PENG and TENG works independently. [33][34][35] For each structure, the output performance of the hybrid nanogenerator can be modulated (enhanced or reduced) according to the polarity of the piezoelectric material.However, previous investigation of the PE-TENGs mainly focuses on the output improvement, [ 26 ] bandwidth adjustment, [ 33 ] and sensor applications.[ 34 ] The theoretical comparison of piezoelectric and triboelectric effects, the coupling of these two effects at different electrode connections, and the infl uence of electrical parameters, which all have great impact on the output of PE-TENG, have not been discussed before. Therefore, in this work, we fi rst established the theoretical models for the specifi c PENG and TENG with similar structure. On this basis, numerical analysis of PE-TENGs at three different structures and two different operation modes was performed. Further, we investigated the infl uence of piezoelectric polarization Both the piezoelectric and triboelectric effects can be utilized to design and realize high-performance nanogenerators. In addition, the structures of longitudinal piezoelectric nanogenerator (PENG) and single-electrode triboelectric nanogenerator (TENG) show great similarity, which may bring possible combinations of these two types of nanogenerators. Here, the fi rst ...

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Dipole-moment-induced effect on contact electrification for triboelectric nanogenerators

Cited by 185 publications

References 35 publications

Intelligent Sensing System Based on Hybrid Nanogenerator by Harvesting Multiple Clean Energy

Intelligent Sensing System Based on Hybrid Nanogenerator by Harvesting Multiple Clean Energy

Piezoelectric peptide-based nanogenerator enhanced by single-electrode triboelectric nanogenerator

Coupling of Piezoelectric and Triboelectric Effects: from Theoretical Analysis to Experimental Verification

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