Multifunctional Flexible Sensor Based on Laser-Induced Graphene

Han, Tao; Nag, Anindya; Simorangkir, Roy B. V. B.; Afsarimanesh, Nasrin; Liu, Hangrui; Mukhopadhyay, Subhas Chandra; Xu, Yongzhao; Zhadobov, Maxim; Sauleau, Ronan

doi:10.3390/s19163477

Cited by 88 publications

(54 citation statements)

References 47 publications

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“…It should be noted that such deformations also affect the distribution of the graphene over the substrate, which can contribute to the change in the resistance of the sensor. The impedance (Z) of LIG-IDC sensors under different loading conditions has been reported by Han et al [94]. As Fig.5b shows, the impedance of the sensor increases, when the bending radius decreases.…”

Section: Physical Sensors Made Of Ligsupporting

confidence: 52%

“…Piezoresistive transducers. The piezoresistance of LIG electrodes printed on flexible PI films has been exploited and utilized in a range of configurations, including measurements of strain, deflection, curvature, force, and pressure [86,89,90,94,97,103,105]. The high variation of the electrical resistance of multilayer samples under strain is induced by the displacement of the layers and changes of their overlapping area.…”

Section: Physical Sensors Made Of Ligmentioning

confidence: 99%

“…a) Strain-induced deformations of IDC LIG sensors[94]. b) The response of the sensor to different bending radii of curvature[94]. c) Change in sensor impedance as a function of strain[94].…”

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confidence: 99%

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Physical Sensors Based on Laser-Induced Graphene: A Review

Kaidarova

Kosel

2021

IEEE Sensors J.

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Physical sensors form the fundamental building blocks of a multitude of advanced applications that detect and monitor the surroundings and communicate the acquired physical data. The everlasting need for more compliant, low-cost, and energy-efficient sensor solutions has led to considerable interest in enhancing their features and operation limits even further. While graphene has emerged as a promising candidate material, due to its outstanding electrical and mechanical properties, it is still not available in large volumes for practical applications. Meanwhile, Laser-Induced Graphene has opened new perspectives for a versatile, durable, printed physical sensing platform capable of detecting various physical parameters across a range of conditions and subjects. In this review, LIG physical sensors were categorized into four broad types based on their transduction mechanism: mechanical, thermal, magnetic, and electromagnetic. We summaries various design strategies established for preparing reliable physical sensors without the involvement of chemical treatments, synthesis, and multi-step fabrication processes. The review considers the effects of laser choice, lasing environment, and parameters on graphene properties. We also discuss a broad spectrum of applications of LIG physical sensors in fields ranging from healthcare, tactile sensing, environmental monitoring, energy harvesting, and soft robotics to desalination and THz modulation.

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Section: Physical Sensors Made Of Ligsupporting

confidence: 52%

Section: Physical Sensors Made Of Ligmentioning

confidence: 99%

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Physical Sensors Based on Laser-Induced Graphene: A Review

Kaidarova

Kosel

2021

IEEE Sensors J.

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“…Furthermore, the wavy LIG structure formed fewer holes and maintained high structural continuity under the periodic strain, so the LIG could be rapidly recovered. To compare with the reported works based on carbon materials [ 26 , 39 , 41 , 42 , 43 ], the wavy-LIG strain sensor located in the optimal area (see Figure 5 h).…”

Section: Results and Discussionmentioning

confidence: 99%

“…Due to the excellent mechanical performance and high conductivity, laser-induced graphene (LIG) is the ideal material to prepare a strain sensor [ 25 , 26 , 27 , 28 ]. LIG can be synthesized with a CO

infrared laser to scan on the polyimide (PI) film in the air, which is a one-step synthesis.…”

Section: Introductionmentioning

confidence: 99%

Wearable Flexible Strain Sensor Based on Three-Dimensional Wavy Laser-Induced Graphene and Silicone Rubber

Huang

Wang

et al. 2020

Sensors

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Laser-induced graphene (LIG) has the advantages of one-step fabrication, prominent mechanical performance, as well as high conductivity; it acts as the ideal material to fabricate flexible strain sensors. In this study, a wearable flexible strain sensor consisting of three-dimensional (3D) wavy LIG and silicone rubber was reported. With a laser to scan on a polyimide film, 3D wavy LIG could be synthesized on the wavy surface of a mold. The wavy-LIG strain sensor was developed by transferring LIG to silicone rubber substrate and then packaging. For stress concentration, the ultimate strain primarily took place in the troughs of wavy LIG, resulting in higher sensitivity and less damage to LIG during stretching. As a result, the wavy-LIG strain sensor achieved high sensitivity (gauge factor was 37.8 in a range from 0% to 31.8%, better than the planar-LIG sensor), low hysteresis (1.39%) and wide working range (from 0% to 47.7%). The wavy-LIG strain sensor had a stable and rapid dynamic response; its reversibility and repeatability were demonstrated. After 5000 cycles, the signal peak varied by only 2.32%, demonstrating the long-term durability. Besides, its applications in detecting facial skin expansion, muscle movement, and joint movement, were discussed. It is considered a simple, efficient, and low-cost method to fabricate a flexible strain sensor with high sensitivity and structural robustness. Furthermore, the wavy-LIG strain senor can be developed into wearable sensing devices for virtual/augmented reality or electronic skin.

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Flexible Ferroelectric Devices: Status and Applications

Jia

Guo

Tay

et al. 2022

Adv Funct Materials

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Flexible electronic devices have been extensively studied for their advantages of distinguished portability, conformal contact characteristics, and human‐friendly interfaces compared with conventional bulk Si technology. Flexible electronics can be attached to various surfaces like skin and internal organs for human–machine interaction, which has made significant advances in electronics, medicine, neuromorphic computing, etc. Owing to the innovation and maturation of the thin film preparation process, which have promoted the successful preparation of high‐quality flexible ferroelectric films. Herein, the preparation of flexible ferroelectric devices and the progress of their applications in recent years are reviewed. Prevailing methods for preparing flexible ferroelectric films including the van der Waals heteroepitaxy on flexible substrate, delamination of the ferroelectric films on rigid substrate by chemical etching techniques, and direct use of novel 2D ferroelectric materials etc. are summarized. The research progress of flexible ferroelectric devices applied to memories, sensors, photovoltaic devices, and energy harvesters are also be discussed in detail. Moreover, the potential applications of flexible ferroelectric devices in the field of neuromorphic computing are studied, a new trend which contributes to the further development of brain‐like chip systems. Finally, the challenges and prospects of flexible ferroelectric devices in the future advanced electronics are briefly proposed.

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Multifunctional Flexible Sensor Based on Laser-Induced Graphene

Cited by 88 publications

References 47 publications

Physical Sensors Based on Laser-Induced Graphene: A Review

Physical Sensors Based on Laser-Induced Graphene: A Review

Wearable Flexible Strain Sensor Based on Three-Dimensional Wavy Laser-Induced Graphene and Silicone Rubber

Flexible Ferroelectric Devices: Status and Applications

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