Flexible triboelectric 3D touch pad with unit subdivision structure for effective XY positioning and pressure sensing

Pu, Xianjie; Tang, Qian; Chen, Wensuo; Huang, Zhengyong; Liu, Guanlin; Zeng, Qixuan; Chen, Jie; Guo, Hengyu; Xin, Liming; Hu, Chenguo

doi:10.1016/j.nanoen.2020.105047

Cited by 76 publications

(39 citation statements)

References 38 publications

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“…Some common methods such as thermal evaporation and sputtering with the advantages of high deposition rate, high purity have wildly used in making conductive layer. [27][28][29] However, paper is not suitable for those depositing methods, since its surface is porous, uneven, and rough. Moreover, the weak physical adsorption interconnection between metal particles and paper substrate increases the risk of breaking conductive layer during continuously periodical deformation.…”

Section: Methods For Improving the Conductivity Of Papermentioning

confidence: 99%

Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

Tang

Guo

Peng

et al. 2020

EcoMat

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In recent years, as a new type of mechanical energy conversion technology, triboelectric nanogenerator (TENG) based on the coupling effect of contact electrification and electrostatic induction has shown distinct advantages in the field of distributed micro/nano power sources, high-precision sensing, and portable high-voltage sources. Typically, the main functional components of TENG include a tribo-layer and the conductive layer, both of which need to be attached on the substrate material serving as support framework thus form a usable device. According to the property of different substrate materials, TENG can achieve various characteristics to meet different practical demands. Among plenty of materials, paper, a commend commodity in daily life, with the characters of cost effectiveness, flexibility, lightweight, integratability, and biocompatibility is considered as a promising substrate or frame material to form super-portable TENG for self-powered electronic devices. However, the rough and porous structure increases the risk of breaking conductive layer prepared by directly depositing metal film during continuously periodical deformation. Herein, focusing on paper-based triboelectric nanogenerator, this article summarizes the preparation methods of paper-based durable conductive layer. Then, the recent researches of paper-based TENGs are systematically introduced from the aspects of mechanical energy harvesting, micro-nano energy devices, self-powered sensors and systems, and so on. Finally, future opportunities and the remaining challenges are expected and discussed. K E Y W O R D S durable conductive layer, mechanical energy harvesting, micro-nano energy devices, paperbased triboelectric nanogenerator, self-powered sensors and systems 1 | INTRODUCTION With the coordinated development of advanced materials/ manufacturing technology and information technology,

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Section: Methods For Improving the Conductivity Of Papermentioning

confidence: 99%

Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

Tang

Guo

Peng

et al. 2020

EcoMat

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“…From the traditional keyboards ( Ahmed et al., 2017 ; Chen et al., 2015 ; Jeon et al., 2018 ; Wang et al., 2018a ; Wu et al., 2018a ; Yang et al., 2013 ) and touch pads ( Chen et al., 2018 ; Dong et al., 2018 ; Shi et al., 2019a ) to the rising electronic skin ( Chang et al., 2020 ; Lai et al., 2016 , 2019 ; Wu et al., 2017 ), the tactile sensors are developed to be more flexible, sensitive, efficient, and multi-functional, even with human-like intelligence. In this part, six examples of TENG-based tactile sensors are reviewed: a high-resolution pressure-sensitive TS matrix for tactile mapping ( Wang et al., 2016 ); an elastic metal-free tactile sensor for detecting both normal and tangential forces ( Ren et al., 2018 ); a transparent and attachable ionic hydrogel-based pressure sensor for coded communication ( Lee et al., 2018 ); a flexible touch pad with subdivided units for tactile XY positioning ( Pu et al., 2020 ); a user-interactive electronic skin for touch track mapping based on the triboelectric-optical model ( Zhao et al., 2020 ); and a triboelectric tactile sensor producing various amplitudes of signals based on the history of pressure stimulations for mimicking neuromorphic functions of synaptic potentiation and memory ( Wu et al., 2020 ).…”

Section: Biomedical Monitoring Integrated Hmismentioning

confidence: 99%

“… (D) Flexible touch pad with subdivided units for tactile XY positioning. Reproduced with permission, from ref ( Pu et al., 2020 ), Copyright 2020, Elsevier. (E) User-interactive electronic skin for touch track mapping based on the triboelectric-optical model.…”

Section: Biomedical Monitoring Integrated Hmismentioning

confidence: 99%

Section: Biomedical Monitoring Integrated Hmismentioning

confidence: 99%

“…In 2020, Pu et al. presented a flexible 3D triboelectric touch pad (3D-TTP) with subdivided units for tactile XY positioning ( Pu et al., 2020 ). As shown in Figure 9 D, this 3D-TTP consists of two parts: the top three layers for XY positioning and the bottom three layers for pressure sensing.…”

Section: Biomedical Monitoring Integrated Hmismentioning

confidence: 99%

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Wearable triboelectric sensors for biomedical monitoring and human-machine interface

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iScience

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Flexible High‐Resolution Triboelectric Sensor Array Based on Patterned Laser‐Induced Graphene for Self‐Powered Real‐Time Tactile Sensing

Yan

Wang

Xia

et al. 2021

Adv Funct Materials

194

110

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Flexible tactile sensors are garnering substantial interest for various promising applications, including artificial intelligence, prosthetics, healthcare monitoring, and human–machine interactions (HMI). However, it still remains a critical challenge in developing high‐resolution tactile sensors without involving high‐cost and complicated manufacturing processes. Herein, a flexible high‐resolution triboelectric sensing array (TSA) for self‐powered real‐time tactile sensing is developed through a facile, mask‐free, high‐efficient, and environmentally friendly laser direct writing technique. A 16 × 16 pixelated TSA with a resolution of 8 dpi based on patterned laser‐induced graphene (LIG) electrodes (7 Ω sq−1) is fabricated by the complementary intersection overlapping between upper and lower aligned semicircular electrode arrays. With the especially patterning design, the complexity of TSA and the number of data channels is reduced. Meanwhile, the TSA platform exhibits excellent durability and synchronicity and enables the achievement of real‐time visualization of multipoint touch, sliding, and tracking motion trajectory without power consumption. Furthermore, a smart wireless controlled HMI system, composed of a 9‐digital arrayed touch panel based on a LIG‐patterned triboelectric nanogenerator, is constructed to control personal electronics wirelessly. Consequently, the self‐powered TSA as a promising platform demonstrates great potential for an active real‐time tactile sensing system, wireless controlled HMI, security identification and, many others.

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Flexible triboelectric 3D touch pad with unit subdivision structure for effective XY positioning and pressure sensing

Cited by 76 publications

References 38 publications

Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

Wearable triboelectric sensors for biomedical monitoring and human-machine interface

Flexible High‐Resolution Triboelectric Sensor Array Based on Patterned Laser‐Induced Graphene for Self‐Powered Real‐Time Tactile Sensing

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