High-performance triboelectric nanogenerators with artificially well-tailored interlocked interfaces

Choi, Hak Jong; Lee, Jeong‐Hwan; Jun, Junho; Kim, Tae Yun; Kim, Sang Woo; Lee, Heon

doi:10.1016/j.nanoen.2016.08.014

Cited by 78 publications

(41 citation statements)

References 22 publications

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“…It is understandable that the dual‐scale patterns can substantially enhance the roughness of the surface and thus improve the performance of the TENG. Artificially well‐designed complex surfaces with the combination of PDMS and a nanostructured Ni electrode were reported by Choi et al, who fabricated these materials through template‐assisted nanomolding of PDMS and the electrodeposition of Ni (Figure b) . The interlocking faces boost the triboelectricity by enlarging not only the surface contact area but also the duration corresponding to the external friction forces.…”

Section: Materials Optimization For High Triboelectric Performancementioning

confidence: 96%

See 1 more Smart Citation

Progress in Triboelectric Materials: Toward High Performance and Widespread Applications

Zhu

Wang

et al. 2019

Adv Funct Materials

199

128

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Triboelectric phenomena can be observed everywhere; however, they are consistently omitted from applications. Although almost all substances exhibit a triboelectrification effect in daily life, chemists as well as materials scientists have performed extensive investigations in both the aspects of basic science and practical applications to promote the development of triboelectric nanogenerators (TENGs). Here, a detailed survey of materials engineering for high triboelectric performance and multifunctional materials toward specific applications is summarized, including constructing micro/ nanostructures, chemically modifying the frication surface, modulating bulk friction materials, the mechanism for improved performance, and preparing materials for implantable medical devices, bionic skin, and wearable electronic devices. Moreover, an in depth discussion of the current challenges and future efforts for strengthening the performance of TENGs is elaborated in detail, which will better guide new researchers toward a deeper understanding of and explorations about TENGs.urgently needed to alleviate a more severe energy crisis, which has diverted extensive attention toward renewable energy (solar energy, geothermal energy, etc.) by virtue of its large quantity and ubiquitous existence in our environment. [1][2][3][4][5][6][7][8][9] In addition, the rapid development of science and technology has also suggested higher requirements for energy delivery. In the past few decades, large numbers of mobile communication electronics, smart wearable devices, and internet of things (IoT) devices based on tens of thousands of sensors have appeared in every corner of the globe. These electronic devices are usually characterized by requiring a small amount of power, only on the microwatt or even the milliwatt level, whereas they hold a relatively large shape to facilitate frequent charging or battery replacement for embedded traditional solid-state power sources. It is, therefore, desirable to integrate an energy harvester together with a battery to form a self-powered system that could be recharged by absorbing and transferring external fragmental energy. Furthermore, considering that a majority of these electronic devices are closely contacting the human body, the individualization of the energy-supply mode related to the person itself remains to be studied in depth.To tackle energy shortages and content-specific power supply requirements, researchers have designed a diversity of energyconversion devices derived from assorted working principles to collect energy, such as solar cells, electromagnetic generators, thermoelectric generators, piezoelectric nanogenerators, and triboelectric nanogenerators (TENGs). [10][11][12][13][14][15][16][17][18][19][20][21] Primarily benefiting from their light weight, low cost, multiple structures, extensive material selection, and even great efficiency at low operating frequencies, the novel TENGs have been proven as up-and-coming candidates to complementarily solve the energy-deficiency issue. T...

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Section: Materials Optimization For High Triboelectric Performancementioning

confidence: 96%

Section: Materials Optimization For High Triboelectric Performancementioning

confidence: 99%

Progress in Triboelectric Materials: Toward High Performance and Widespread Applications

Zhu

Wang

et al. 2019

Adv Funct Materials

199

128

View full text Add to dashboard Cite

show abstract

“…Surface modification methods used in many previous TENG studies include decorating nano‐ or microsized particles or rods onto the surface of the triboelectric material or patterning the surface of triboelectric material into nano‐/microstructures using RIE plasma treatment such as pattern mold. However, most previous TENG studies have used these surface treatment methods on plastic platforms, not textile platforms for wearable devices . In addition, mechanical durability due to very weak adhesion between textile and nanostructure has become a problem.…”

Section: Fabric‐based Tengsmentioning

confidence: 99%

Textile‐Based Triboelectric Nanogenerators for Self‐Powered Wearable Electronics

Kwak

Yoon

Kim

2018

Adv Funct Materials

Self Cite

170

104

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Figure 2. a) Schematic diagram showing the fabrication process of fiber-based TENG. SEM images of b) a CNT-coated cotton thread and c) (PTFE) and CNT-coated cotton thread. d) Real image of fiber-based TENG. f) Output current-time curve of a fiber-based TENG with stimulation strains of 0%, 0.54%, 1.08%, 1.61%, and 2.15% at a constant frequency of 5 Hz. g) Output current-time curve of a fiber-based TENG with stimulation frequency of 1.3, 2, 3, 4, and 5 Hz at a constant strain of 2.15 Hz. h) Durability test of fiber-based TENG for 5 h (≈90 000 cycles). Reproduced with permission. [33]

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“…Moreover, they systemically demonstrated that the thickness of metal thin film on the nanopatterns can affect the triboelectric energy harvesting performance, firstly indicating the trade-off phenomena in the modulation between electrode conducting and nanopattern flattening effects. Choi et al fabricated the nature-inspired nanopillar arrays by using the nano-imprint lithography and the electrodeposition [95]. Figure 4(c) presents the structure of nanopillar arrays-based TEG.…”

Section: Surface Texturing and Patterningmentioning

confidence: 99%

Modulation of surface physics and chemistry in triboelectric energy harvesting technologies

Lee

Kim

Park

et al. 2019

Science and Technology of Advanced Materials

102

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Mechanical energy harvesting technology converting mechanical energy wasted in our surroundings to electrical energy has been regarded as one of the critical technologies for self-powered sensor network and Internet of Things (IoT). Although triboelectric energy harvesters based on contact electrification have attracted considerable attention due to their various advantages compared to other technologies, a further improvement of the output performance is still required for practical applications in next-generation IoT devices. In recent years, numerous studies have been carried out to enhance the output power of triboelectric energy harvesters. The previous research approaches for enhancing the triboelectric charges can be classified into three categories: i) materials type, ii) device structure, and iii) surface modification. In this review article, we focus on various mechanisms and methods through the surface modification beyond the limitations of structural parameters and materials, such as surficial texturing/patterning, functionalization, dielectric engineering, surface charge doping and 2D material processing. This perspective study is a cornerstone for establishing next-generation energy applications consisting of triboelectric energy harvesters from portable devices to power industries.

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High-performance triboelectric nanogenerators with artificially well-tailored interlocked interfaces

Cited by 78 publications

References 22 publications

Progress in Triboelectric Materials: Toward High Performance and Widespread Applications

Progress in Triboelectric Materials: Toward High Performance and Widespread Applications

Textile‐Based Triboelectric Nanogenerators for Self‐Powered Wearable Electronics

Modulation of surface physics and chemistry in triboelectric energy harvesting technologies

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