Theoretical Investigation and Structural Optimization of Single‐Electrode Triboelectric Nanogenerators

Niu, Simiao; Liu, Ying; Wang, Sihong; Lin, Long; Zhou, Yu; Hu, Youfan; Wang, Zhong Lin

doi:10.1002/adfm.201303799

Cited by 523 publications

(349 citation statements)

References 18 publications

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“…In addition, the U.S. Government work not protected by U.S. copyright. inherent capacitance (C T ) of a single-electrode TENG is nearly constant, which will also simplify our discussion [17]. As shown in Fig.…”

Section: Teng Charging Performance Under Unidirectional Mechanicamentioning

confidence: 99%

Optimization of Triboelectric Nanogenerator Charging Systems for Efficient Energy Harvesting and Storage

Niu

Liu

Zhou

et al. 2015

IEEE Trans. Electron Devices

147

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Triboelectric nanogenerator (TENG) technology has emerged as a new mechanical energy harvesting technology with numerous advantages. This paper analyzes its charging behavior together with a load capacitor. Through numerical and analytical modeling, the charging performance of a TENG with a bridge rectifier under periodic external mechanical motion is completely analogous to that of a dc voltage source in series with an internal resistance. An optimum load capacitance that matches the TENGs impedance is observed for the maximum stored energy. This optimum load capacitance is theoretically detected to be linearly proportional to the charging cycle numbers and the inherent TENG capacitance. Experiments were also performed to further validate our theoretical anticipation and show the potential application of this paper in guiding real experimental designs.

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Section: Teng Charging Performance Under Unidirectional Mechanicamentioning

confidence: 99%

Optimization of Triboelectric Nanogenerator Charging Systems for Efficient Energy Harvesting and Storage

Niu

Liu

Zhou

et al. 2015

IEEE Trans. Electron Devices

147

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“…The gap between the external object and the primary electrode determines the output performance of TENGs. [ 17,18 ] If the external objects moves to the infi nity, its infl uence can be completely neglected, and the transferred charge at SC condition ( Q SC-TENG ) and OC voltage ( V OC-TENG ) in this case can be given by:…”

Section: Theoretical Comparison Of Piezoelectric and Triboelectric Efmentioning

confidence: 99%

“…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.…”

mentioning

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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“…In open-circuit condition, the outer surface of the PTFE beads was assigned a surface charge density of À 8 Â 10 À 6 C m À 2 [19]. The two planar electrodes were both assigned zero surface charge.…”

Section: Theoretical Simulation Via Comsolmentioning

confidence: 99%

Fully enclosed bearing-structured self-powered rotation sensor based on electrification at rolling interfaces for multi-tasking motion measurement

Meng

Zhu

et al. 2015

Nano Energy

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Theoretical Investigation and Structural Optimization of Single‐Electrode Triboelectric Nanogenerators

Cited by 523 publications

References 18 publications

Optimization of Triboelectric Nanogenerator Charging Systems for Efficient Energy Harvesting and Storage

Optimization of Triboelectric Nanogenerator Charging Systems for Efficient Energy Harvesting and Storage

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

Fully enclosed bearing-structured self-powered rotation sensor based on electrification at rolling interfaces for multi-tasking motion measurement

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