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

Luo, Jianjun; Wang, Zhong Lin

doi:10.1002/eom2.12059

Cited by 293 publications

(174 citation statements)

References 161 publications

(270 reference statements)

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“…[ 66 ] In addition, the hydrogel and brush micropatterns with 3D structures on omniphobic slippery surfaces could also extend their utilization as self‐cleaning optic lenses or triboelectric nanogenerators. [ 45,67 ]…”

Section: Resultsmentioning

confidence: 99%

“…[66] In addition, the hydrogel and brush micropatterns with 3D structures on omniphobic slippery surfaces could also extend their utilization as selfcleaning optic lenses or triboelectric nanogenerators. [45,67] Furthermore, the PDA-patterned slippery liquid-like surfaces could be readily employed to fabricate biomolecular microarrays without further modifications. The liquid-attached surface has been proved excellent anti-biofouling performance to proteins, cells, and bacteria, [15] while the PDA coating enables covalent immobilization of biomolecules (Figure 5A).…”

Section: (7 Of 12)mentioning

confidence: 99%

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High‐Resolution Patterned Functionalization of Slippery “Liquid‐Like” Brush Surfaces via Microdroplet‐Confined Growth of Multifunctional Polydopamine Arrays

Fang

Zhang

Chen

et al. 2021

Adv Funct Materials

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Slippery omniphobic covalently attached liquids enable smooth, transparent, pressure‐ and temperature‐resistant, and liquid‐repellent coatings. Patterned functionalization of such surfaces would drive technology developments and fundamental understandings in broad applications from biosensors to sustainable smart surfaces. Herein an additive microcontact printing approach in combination with the microdroplet‐confined synthesis is developed to functionalize slippery surfaces tethered with “liquid‐like” linear poly(dimethylsiloxane) by multifunctional polydopamine (PDA) arrays. Using glycerol and non‐ionic surfactant Tween‐20, microdroplet arrays containing dopamine monomers are printed onto the slippery surfaces and serve as microreactors for the in situ growth of PDA micropatterns. The confined growth approach enables tunable feature size, height, and morphology of the patterns, through which sub‐micrometer PDA dot arrays over centimeter‐square patterning area can be reliably achieved. Furthermore, the reactive and hydrophilic PDA micropatches allow further functionalization of the slippery surfaces with a diverse variety of materials, meanwhile the anti‐fouling and dynamically dewetting “liquid‐like” brushes permit minimum background contamination. Proof‐of‐concept demonstrations include PDA‐initiated photografting for stimuli‐responsive polymer functionalization, protein immobilization for microarray‐based immunoassays, as well as sliding‐induced selective dewetting of organic solutions to pattern photoluminescent perovskite microcrystals and nanoparticles. The current approach illustrates the potential for applying patterned slippery surfaces with multifunctional architectures in many fields.

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Section: Resultsmentioning

confidence: 99%

Section: (7 Of 12)mentioning

confidence: 99%

High‐Resolution Patterned Functionalization of Slippery “Liquid‐Like” Brush Surfaces via Microdroplet‐Confined Growth of Multifunctional Polydopamine Arrays

Fang

Zhang

Chen

et al. 2021

Adv Funct Materials

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“…Till now, most optimized strategies have been proposed focusing on the second step, that is, try to get a perfect match between the mechanical frequency ω and 1/ Z L C T ; [ 17,33 ] but seldom consideration is paid to convert and improve the energy storage of a TENG. [ 11,17,33,35 ] In general, the first step is strongly dependent on the device parameters, such as the dielectric constant, dielectric thickness, contacting surface area, et al.…”

Section: Theorymentioning

confidence: 99%

Designing Rules and Optimization of Triboelectric Nanogenerator Arrays

Shao

Yang

et al. 2021

Advanced Energy Materials

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A triboelectric nanogenerator (TENG) is an effective means for the conversion of mechanical energy into electricity. Although Maxwell's displacement current is the underline mechanism of TENGs, the spatial and temporal variations of the electric field and electric displacement remain elusive, which prohibits an effective optimization of the energy conversion process. Here, the electric field distribution and energy dynamics of TENGs is determined using 3D mathematical modeling. The electrical energies stored in TENGs and extracted into the external circuit are calculated quantitatively whereby the ratio of the two, defined as the output efficiency, is obtained. Then, the power density and energy density of TENGs are defined. Utilizing the principle of virtual work, the minimum required external force–time relationship is evaluated. The influence of device parameters, geometry, and optimum conditions are discussed systematically so as to determine general optimization guidelines for TENGs. In addition, although the fringing electric field is practically inevitable, adjustments of the gap distance between neighboring TENG devices to assure that an optimized fringing electric field is “leaked”, is demonstrated to lead to improvement in a TENG array. Then, for the first time, this work presents universal design rules and holistic optimization strategies for the network structure of TENGs.

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“…The triboelectric nanogenerator (TENG), which is based on the coupling of triboelectric effect and electrostatic induction effect, was first proposed by Wang et al [ 17 ] in 2012 and expected to be a promising power source or self-powered sensor [ 18 ]. Because of a low-cost, simple, and flexible structure, easy production and manufacture, high integrated level and high efficiency of the TENG [ 19 ], it has attracted the attention of many researchers around the world and has been applied to the energy harvesting in different fields [ 20 ], such as mechanical energy [ 21 , 22 , 23 ], wind energy [ 24 ], wave energy [ 25 , 26 ], acoustic energy [ 27 ], and human motion energy [ 28 ]. In addition, in order to collect different forms of energy more effectively, hybridized nanogenerators are also developed [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

A Self-Powered and Highly Accurate Vibration Sensor Based on Bouncing-Ball Triboelectric Nanogenerator for Intelligent Ship Machinery Monitoring

Zuo

Dong

et al. 2021

Micromachines

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With the development of intelligent ship, types of advanced sensors are in great demand for monitoring the work conditions of ship machinery. In the present work, a self-powered and highly accurate vibration sensor based on bouncing-ball triboelectric nanogenerator (BB-TENG) is proposed and investigated. The BB-TENG sensor consists of two copper electrode layers and one 3D-printed frame filled with polytetrafluoroethylene (PTFE) balls. When the sensor is installed on a vibration exciter, the PTFE balls will continuously bounce between the two electrodes, generating a periodically fluctuating electrical signals whose frequency can be easily measured through fast Fourier transform. Experiments have demonstrated that the BB-TENG sensor has a high signal-to-noise ratio of 34.5 dB with mean error less than 0.05% at the vibration frequency of 10 Hz to 50 Hz which covers the most vibration range of the machinery on ship. In addition, the BB-TENG can power 30 LEDs and a temperature sensor by converting vibration energy into electricity. Therefore, the BB-TENG sensor can be utilized as a self-powered and highly accurate vibration sensor for condition monitoring of intelligent ship machinery.

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

Cited by 293 publications

References 161 publications

High‐Resolution Patterned Functionalization of Slippery “Liquid‐Like” Brush Surfaces via Microdroplet‐Confined Growth of Multifunctional Polydopamine Arrays

High‐Resolution Patterned Functionalization of Slippery “Liquid‐Like” Brush Surfaces via Microdroplet‐Confined Growth of Multifunctional Polydopamine Arrays

Designing Rules and Optimization of Triboelectric Nanogenerator Arrays

A Self-Powered and Highly Accurate Vibration Sensor Based on Bouncing-Ball Triboelectric Nanogenerator for Intelligent Ship Machinery Monitoring

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