Trampoline inspired stretchable triboelectric nanogenerators as tactile sensors for epidermal electronics

He, Jiahui; Xie, Zhaoqian; Yao, Kuanming; Li, Dengfeng; Liu, Yiming; Gao, Zhan; Lü, Wei; Chang, Lingqian; Yu, Xinge

doi:10.1016/j.nanoen.2020.105590

Cited by 70 publications

(55 citation statements)

References 50 publications

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“…It is worth noting that the crosstalk is a great challenge problem in TENG‐based tactile sensing arrays when the output is not high enough. [ 35 ] At present, great efforts have been devoted to suppress the crosstalk between sensing pixels as well as the adjacent electrodes, such as adopting a shielding layer [ 33,35,49,50 ] and designing height difference between the sensor units and interconnect electrodes [ 24 ] and sensing unit with patterned subdivision structure. [ 19 ] However, without additional shielding layer, the crosstalk suppression has also been demonstrated from TENG with particular pattern.…”

Section: Resultsmentioning

confidence: 99%

“…[ 24 ] Although the crosstalk from the electrodes has been successfully suppressed by special device design, the issues on complicated fabrication, low sensing resolution and tedious wiring layout still need be addressed due to every sensor unit individually connected as one data channel. Therefore, the fabrication usually involves the specialized equipment and sophisticated or expensive processes, such as photolithography, vacuum deposition, etching, and/or other complicated procedures and designs, [ 4,5,21,33–35 ] which are high‐cost and time‐consuming and would block their widespread practical applications. A simple, low‐cost, high‐efficient fabrication process is highly desired for flexible, high‐resolution, and self‐powered TSA applied in tactile sensing.…”

Section: Introductionmentioning

confidence: 99%

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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

207

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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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

207

110

View full text Add to dashboard Cite

show abstract

“…Конструктивно трибоелектричні сенсори механічних полів виконують як тонкоплівкові шари, що під час дотику чи тертя генерують електричний заряд на своїй поверхні (MXene-PDMS, поліуретан -каптон (РІ), PET-PDMS тощо) [25,43,44]. Аналогічно до п'єзоелектричних сенсорів можна формувати матрицю сенсорів для визначення локалізації прикладання сили [19,42]. Їх також можна використовувати як генератори енергії, зокрема на основі сенсорів цього типу будують TENG (тензоелектричні наногенератори) [24,25,42].…”

Section: гнучкі сенсори температуриunclassified

Flexible and Biodegradable Sensors: Materials, Manufacturing Technology and Devices on Its Basis

Lapshuda¹,

Koval²

2021

KPI SN

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Background. Currently, there is a significant number of technologies and materials in the world that are used to manufacture flexible electronics devices. Therefore, a review of various technologies and materials for the manufacture of flexible sensors, which would not be inferior in terms of sensitivity to their solid-state counterparts, is in demand. In addition, most modern flexible electronics technologies are based on the use of artificial polymers, the production of which pollutes the environment and which need to be disposed of at the end of its service life. Therefore, there is an urgent need to find an alternative to artificial polymers, environmentally friendly material. Objective. The purpose of the paper is to determine design and technological features of manufacturing and application of flexible and biodegradable electronic sensors. Methods. The article analyses, classifies and compares different technologies and materials for the manufacture of flexible sensors, which would not be inferior to their solid-state counterparts in terms of sensitivity. The technological features of synthesis and the main characteristics of flexible sensors made on the basis of artificial and biodegradable materials were also compared in the paper. Results. The design and technological features of manufacturing as well as application of flexible electronic sensors in comparison with their solid-state analogues were determined in the paper. Three groups of substrate materials that can be used for the synthesis of flexible sensors have been identified and their performance characteristics analysed. A comparison of different production techniques for flexible electronic sensors in terms of environmental friendliness, cost and manufacturability is carried out. Conclusions. The most promising biodegradable material, on the surface of which one can create a flexible sensor, is nanocellulose. Different types of printing are the most promising production technique for the manufacture of such devices, because they are cheap and can provide high productivity. Based on the obtained results, it is possible to improve the existing and develop new methods of creating flexible electronics devices that do not require recycling.

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“…Although many research groups have developed a variety of gesture recognition devices, such as smart gloves, some of these technologies have some limitations in practical applications, including the difficulty in identifying and detecting subtle features and the requirement on external energy supply [ 9 – 17 ]. Among various sensing mechanisms, triboelectric-based electronic devices surpass other resistive, capacitive, piezoelectric, and photoelectric due primarily to the feature of high output voltages and effective operation without external energy supply [ 18 – 32 ].…”

Section: Introductionmentioning

confidence: 99%

Self-Powered Intelligent Human-Machine Interaction for Handwriting Recognition

et al. 2021

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Handwritten signatures widely exist in our daily lives. The main challenge of signal recognition on handwriting is in the development of approaches to obtain information effectively. External mechanical signals can be easily detected by triboelectric nanogenerators which can provide immediate opportunities for building new types of active sensors capable of recording handwritten signals. In this work, we report an intelligent human-machine interaction interface based on a triboelectric nanogenerator. Using the horizontal-vertical symmetrical electrode array, the handwritten triboelectric signal can be recorded without external energy supply. Combined with supervised machine learning methods, it can successfully recognize handwritten English letters, Chinese characters, and Arabic numerals. The principal component analysis algorithm preprocesses the triboelectric signal data to reduce the complexity of the neural network in the machine learning process. Further, it can realize the anticounterfeiting recognition of writing habits by controlling the samples input to the neural network. The results show that the intelligent human-computer interaction interface has broad application prospects in signature security and human-computer interaction.

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Trampoline inspired stretchable triboelectric nanogenerators as tactile sensors for epidermal electronics

Cited by 70 publications

References 50 publications

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

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

Flexible and Biodegradable Sensors: Materials, Manufacturing Technology and Devices on Its Basis

Self-Powered Intelligent Human-Machine Interaction for Handwriting Recognition

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