Biomimetic anti-reflective triboelectric nanogenerator for concurrent harvesting of solar and raindrop energies

Yoo, Donghyeon; Park, Seung-Chul; Lee, Seoulmin; Sim, Jae‐Yoon; Song, Insang; Choi, Dongwhi; Lim, Hyuneui; Kim, Dong Sung

doi:10.1016/j.nanoen.2018.12.035

Cited by 156 publications

(102 citation statements)

References 44 publications

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“…Among these, vibration energy is ubiquitous, such as structural vibrations, human activities, and fluid flows. The mechanical vibration energy can be converted into electrical energy through four transduction mechanisms, which are electromagnetic [6,7], piezoelectric [8,9,10], triboelectric [11,12], and electrostatic [13,14]. Piezoelectric vibration energy harvesters (PVEHs) have received significant attention due to their simple configuration, high energy conversion efficiency, and precision controllability of the mechanical response [15,16,17].…”

Section: Introductionmentioning

confidence: 99%

A Low-Frequency MEMS Piezoelectric Energy Harvesting System Based on Frequency Up-Conversion Mechanism

Huang

Hou

et al. 2019

Micromachines

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This paper proposes an impact-based micro piezoelectric energy harvesting system (PEHS) working with the frequency up-conversion mechanism. The PEHS consists of a high-frequency straight piezoelectric cantilever (SPC), a low-frequency S-shaped stainless-steel cantilever (SSC), and supporting frames. During the vibration, the frequency up-conversion behavior is realized through the impact between the bottom low-frequency cantilever and the top high-frequency cantilever. The SPC used in the system is fabricated using a new micro electromechanical system (MEMS) fabrication process for a piezoelectric thick film on silicon substrate. The output performances of the single SPC and the PEHS under different excitation accelerations are tested. In the experiment, the normalized power density of the PEHS is 0.216 μW·g−1·Hz−1·cm−3 at 0.3 g acceleration, which is 34 times higher than that of the SPC at the same acceleration level of 0.3 g. The PEHS can improve the output power under the low frequency and low acceleration scenario.

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Section: Introductionmentioning

confidence: 99%

A Low-Frequency MEMS Piezoelectric Energy Harvesting System Based on Frequency Up-Conversion Mechanism

Huang

Hou

et al. 2019

Micromachines

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“…These studies need to control the viscoelasticity and surface adhesion of the microstructures. Recently, liquid-solid contact electrification has been studied on microstructured surfaces 38,39 . Combining the liquid-solid contacts and the solid-solid contacts may provide a good strategy to separate the effects of the increase in the surface area from the effect of the microstructure deformation dynamics.…”

Section: Charge-generating Layermentioning

confidence: 99%

Material aspects of triboelectric energy generation and sensors

et al. 2020

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The triboelectric nanogenerator (TENG) is a new type of energy generator first demonstrated in 2012. TENGs have shown potential as power sources for electronic devices and as sensors for detecting mechanical and chemical stimuli. To date, studies on TENGs have focused primarily on optimizing the systems and circuit designs or exploring possible applications. Even though triboelectricity is highly related to the material properties, studies on materials and material designs have been relatively less investigated. This review article introduces recent progress in TENGs, by focusing on materials and material designs to improve the electrical output and sensing performance. This article discusses the current technological issues and the future challenges in materials for TENG.

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“…The Si solar cell can only charge the 33 μ F capacitor to 0.6 V, but the rectified TENG under a water dripping rate of 0.116 mL/s is used to charge the same capacitor to 3.5 V for 530 s. This confirms that the hybrid energy cell can provide electric output in different weather conditions. Considering that the transparent property of TENG device affects the optical characteristics of solar cell, Yoo et al reported a moth's eye mimicking TENG (MM-TENG) with high transmittance (91% for visible light), which is hybrid with a conventional solar cell [ 113 ]. At the same time, through a novel electric circuit for effective management in a hybrid energy harvester, environmental energy is properly collected and energy efficiency is improved in Figure 7(e) .…”

Section: Integration Of Mechanical and Solar Energy Harvestersmentioning

confidence: 99%

“…Copyright Elsevier, 2020); (d) micropyramidal silicon-based hybrid cell [ 112 ] (reproduced with permission. Copyright Elsevier, 2014); (e) self-cleaning moth's eye mimicking TENG-based hybrid energy harvester [ 113 ] (reproduced with permission. Copyright Elsevier, 2019); (f) shared mutual function electrode-based integrated system [ 114 ] (reproduced with permission.…”

Section: Figurementioning

confidence: 99%

Hybrid Triboelectric Nanogenerators: From Energy Complementation to Integration

et al. 2021

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Energy collection ways using solar energy, wave, wind, or mechanical energy have attracted widespread attention for small self-powered electronic devices with low power consumption, such as sensors, wearable devices, electronic skin, and implantable devices. Among them, triboelectric nanogenerator (TENG) operated by coupling effect of triboelectrification and electrostatic induction has gradually gained prominence due to its advantages such as low cost, lightweight, high degree of freedom in material selection, large power, and high applicability. The device with a single energy exchange mechanism is limited by its conversion efficiency and work environment and cannot achieve the maximum conversion of energy. Thus, this article reviews the research status of different types of hybrid generators based on TENG in recent years. Hybrid energy generators will improve the output performance though the integration of different energy exchange methods, which have an excellent application prospect. From the perspective of energy complementation, it can be divided into harvesting mechanical energy by various principles, combining with harvesters of other clean energy, and converting mechanical energy or various energy sources into hydrogen energy. For integrating multitype energy harvesters, mechanism of single device and structural design of integrated units for different application scenarios are summarized. The expanding energy harvesting efficiency of the hybrid TENG makes the scheme of self-charging unit to power intelligent mobile electronic feasible and has practical significance for the development of self-powered sensor network.

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Biomimetic anti-reflective triboelectric nanogenerator for concurrent harvesting of solar and raindrop energies

Cited by 156 publications

References 44 publications

A Low-Frequency MEMS Piezoelectric Energy Harvesting System Based on Frequency Up-Conversion Mechanism

A Low-Frequency MEMS Piezoelectric Energy Harvesting System Based on Frequency Up-Conversion Mechanism

Material aspects of triboelectric energy generation and sensors

Hybrid Triboelectric Nanogenerators: From Energy Complementation to Integration

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