Electronic skin based on PLLA/TFT/PVDF-TrFE array for Multi-Functional tactile sensing and visualized restoring

Wang, Xin Yu; Ling, Xuan; Hu, Ying; Hu, Xiaoran; Zhang, Qian; Sun, Kuo; Xiang, Yong

doi:10.1016/j.cej.2022.134735

Cited by 22 publications

(10 citation statements)

References 41 publications

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“…With the content of HA increasing to 30 wt%, the intensity of the diffraction peaks of the α-phase crystal continued to decrease, while the intensity of the diffraction peaks of the β-phase crystal increased. Such phenomena indicated that the addition of HA to PLLA may help to enhance the transformation of β-phase crystal to α-phase crystal [19,20]. It is well known that the piezoelectricity of PLLA originates from the orientation of C=O dipoles.…”

Section: Resultsmentioning

confidence: 99%

Poling-Free Hydroxyapatite/Polylactide Nanogenerator with Improved Piezoelectricity for Energy Harvesting

et al. 2022

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Polylactide-based piezoelectric nanogenerators were designed and fabricated with improved piezoelectric performances by blending polylactide with hydroxyapatite. The addition of hydroxyapatite significantly improves the crystallinity of polylactide and helps to form hydrogen bonds, which further improved the piezoelectric output performance of these piezoelectric nanogenerators with over three times the open circuit voltage compared with that of pure-polylactide-based devices. Such excellent piezoelectricity of hydroxyapatite/polylactide-based nanogenerators give them great potential for energy harvesting fields.

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Section: Resultsmentioning

confidence: 99%

Poling-Free Hydroxyapatite/Polylactide Nanogenerator with Improved Piezoelectricity for Energy Harvesting

et al. 2022

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Section: Brain Signal and Electrical Signal Conversion Problemmentioning

confidence: 99%

“…First, it is a struggle for researchers to obtain flexible electronic skin as soft and stretchable as real skin. Moreover, the electronic skin that is authentically used in human daily routine also needs to be as self-healing, [17] self-powered, [18,19] multifunctional, [6,[20][21][22] biocompatible, [23] and biodegradable as human skin. Further, the tactile sensors of human skin have different functions and are distributed throughout the body, sending information to the brain about sensations such as hot and cold, pain and itching, roughness or smoothness.…”

mentioning

confidence: 99%

How Far for the Electronic Skin: From Multifunctional Material to Advanced Applications

Chen

Sun

Wei

et al. 2023

Adv Materials Technologies

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Electronic skin that imitates the characteristics and functions of human skin to sense various external signals and records them as different electrical signals has received extensive attention, and much effort has been made on electronic skin for potential medicine application. However, it still needs a long way to achieve practical applications for electronic skin as consumer electronics, the recent progress of electronic skin is reviewed. First, the crucial characteristics in practical electronic skin are analyzed. Subsequently, the technical supports that need to obtain practical electronic skin are also discussed, and electronic skin in terms of short‐term application, medium‐term application and long‐term application are introduced. Finally, suggestions for future development directions in this fascinating field are put forward.

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“…Poly(vinylidene-fluoride) (PVDF) stands out among various polymeric materials in fabricating skin-based NGs, due to their high stability and high piezoelectric coefficient (d33 ¼ 49.6 pm V À1 ). [86][87][88][89][90] To manufacture PVDF, electrospinning is the common method. [91,92] Recently, tremendous effort has been made to improve the sensitivity of polymers-based epidermal PENGs.…”

Section: Piezoelectric Engsmentioning

confidence: 99%

A Review on Epidermal Nanogenerators: Recent Progress of the Future Self‐Powered Skins

Nguyen

Cheng

2022

Small Structures

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Epidermal nanogenerators (ENGs), defined as nano‐enabled, thin, soft, and flexible skin‐like devices that can convert mechanical and thermal energy into electricity, are emerging as a promising self‐powered technology for wearable biomedical devices. This review covers the discussion of working mechanisms, design strategy, and major requirements of the state‐of‐the‐art ENGs including piezoelectric, triboelectric, pyroelectric, and hybrid. In addition, their representative applications in human–machine interface (HMI), wound healing, and wearable biomedical sensors are described. In particular, a focus has been on the narration of self‐powered ENG‐based biosensors for detecting physical, biochemical, and physiological signals. Despite the encouraging advances over the past decade, the field of ENGs remains in the early stage of development with limited real‐world adoption. There remain a number of challenges such as insufficient energy and power density for powering wearable devices, poor air permeability, limited washability, and durability under severe conditions. The future opportunity lies at the development of better materials and/or designs to tackle these challenges to generate real‐world impact.

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Electronic skin based on PLLA/TFT/PVDF-TrFE array for Multi-Functional tactile sensing and visualized restoring

Cited by 22 publications

References 41 publications

Poling-Free Hydroxyapatite/Polylactide Nanogenerator with Improved Piezoelectricity for Energy Harvesting

Poling-Free Hydroxyapatite/Polylactide Nanogenerator with Improved Piezoelectricity for Energy Harvesting

How Far for the Electronic Skin: From Multifunctional Material to Advanced Applications

A Review on Epidermal Nanogenerators: Recent Progress of the Future Self‐Powered Skins

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