Laser-directed synthesis of strain-induced crumpled MoS2 structure for enhanced triboelectrification toward haptic sensors

Park, Seoungwoong; Park, Jiseul; Kim, Yeon-gyu; Bae, Sukang; Kim, Tae-Wook; Park, Kwi‐Il; Hong, Byung Hee; Jeong, Chang Kyu; Lee, Seoung‐Ki

doi:10.1016/j.nanoen.2020.105266

Cited by 75 publications

(62 citation statements)

References 73 publications

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“…Park et al characterized TENG devices consisting of either flat or crumpled MoS 2 layers. The crumpled MoS 2 was synthesized by laser-directed thermolysis [ 74 ]. Figure 10 a is a schematic for fabrication of the flat and crumpled MoS 2 using a laser line-scribing machine on an (NH 4 ) 2 MoS 4 –coated Si wafer substrate.…”

Section: Self-powered Sensorsmentioning

confidence: 99%

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Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials

Lee

Yoo

2021

Molecules

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Nanomaterials have gained considerable attention over the last decade, finding applications in emerging fields such as wearable sensors, biomedical care, and implantable electronics. However, these applications require miniaturization operating with extremely low power levels to conveniently sense various signals anytime, anywhere, and show the information in various ways. From this perspective, a crucial field is technologies that can harvest energy from the environment as sustainable, self-sufficient, self-powered sensors. Here we revisit recent advances in various self-powered sensors: optical, chemical, biological, medical, and gas. A timely overview is provided of unconventional nanomaterial sensors operated by self-sufficient energy, focusing on the energy source classification and comparisons of studies including self-powered photovoltaic, piezoelectric, triboelectric, and thermoelectric technology. Integration of these self-operating systems and new applications for neuromorphic sensors are also reviewed. Furthermore, this review discusses opportunities and challenges from self-powered nanomaterial sensors with respect to their energy harvesting principles and sensing applications.

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Section: Self-powered Sensorsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials

Lee

Yoo

2021

Molecules

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“…Recently, a surface‐rumpled 2D MoS 2 TENG device has been developed by simple laser‐directed thermolysis. [ 66 ] In this work, the researchers presented a flexible method for developing flat and crumpled MoS 2 by adjusting the fluence level. The (NH4) 2 MoS 2 is capable of high optical absorptivity and easily transferred to the 2D MoS 2 layer under the fluence level from 2.52 to 2.61 J cm −2 .…”

Section: Application: Self‐powered Sensormentioning

confidence: 99%

Electronic View of Triboelectric Nanogenerator for Energy Harvesting: Mechanisms and Applications

Sun

Huang

et al. 2021

Adv Energy and Sustain Res

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Harvesting energy from rain, waves, and river flows has been an old problem for over 100 years. Hydropower is capable of the features of huge quantity, low cost, and renewability. To date, the investigations on triboelectrification have shed a light on flexible and sufficient energy harvesting methods from hydropower or ambient motions. A triboelectric nanogenerator (TENG) has become the most promising energy harvesting system in recent years. Herein, the background of hydropower is first introduced to highlight the urgent need of novel energy conversion devices. Meanwhile, the detailed working principle of contact electrification (CE) is summarized by focusing on the origins of charge and how such a charge is induced. With systematic studies, the common modes of charge generation systems are well investigated. Then, the fabrications of various types of CE‐based devices are introduced with the potential modifications to achieve high applicability in specific circumstances. In addition, the multifunctional devices for distinctive energy harvesting processes constructed by TENG are also reviewed. Due to real‐time response to environmental variation, TENG‐based self‐powered sensors and wearable healthcare devices have also become promising candidates in the scientific field as well as different aspects of daily life.

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“…Direct-pattern formation by photothermal decomposition is used to fabricate self-powering haptic sensors that use an MoS 2 active layer. Park et al [24] fabricated large-scale patterned MoS 2 thin films and developed strain induced crumpled MoS 2 . The crumpled MoS 2 has distinct characteristics compared to the pristine MoS 2 .…”

Section: Strain and Haptic Sensorsmentioning

confidence: 99%

Synthesis of Large-Scale Transition Metal Dichalcogenides for Their Commercialization

Park

Jun

Bae

et al. 2020

Appl. Sci. Converg. Technol.

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Transition metal dichalcogenides (TMDC) have been identified as excellent platforms for developing the next-generation commercial flexible logic devices and sensors, owing to their outstanding mechanical, optical, and electrical properties. The TMDCs can be used to produce novel form-factors for wearable electronic devices. Typically, synthesis of large-scale TMDC thin film have been achieved by complexity vacuum-based approach. Therefore, it is essential to develop a simple and effective method to boost-up mass production of TMDC thin films on a large scale upon arbitrary substrates. In this regard, the solution-based TMDC synthesis method is advantageous because it proposes a simplification of the fabrication processes and an easy scaling-up of the material with a non-vacuum system. In this review, we summarize the evolution of the solution-based thin-film preparation and synthesis of the TMDCs; subsequently, we discuss the merits and drawbacks of the recently developed methods to form TMDC thin films directly from the deposited precursor. Finally, we discuss the practical applications of the TMDC thin films, which demonstrate the feasibility of their commercialized applications in electronic devices and sensors.

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Laser-directed synthesis of strain-induced crumpled MoS2 structure for enhanced triboelectrification toward haptic sensors

Cited by 75 publications

References 73 publications

Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials

Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials

Electronic View of Triboelectric Nanogenerator for Energy Harvesting: Mechanisms and Applications

Synthesis of Large-Scale Transition Metal Dichalcogenides for Their Commercialization

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