A flexible ultra-sensitive triboelectric tactile sensor of wrinkled PDMS/MXene composite films for E-skin

Cai, Ya-Wei; Zhang, Xiaonan; Wang, Gui‐Gen; Li, Guizhong; Zhao, Daqiang; Sun, Na; Li, Fēi; Zhang, Huayu; Han, Jiecai; Yang, Ya

doi:10.1016/j.nanoen.2020.105663

Cited by 257 publications

(117 citation statements)

References 24 publications

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“…In view of the excellent electromagnetic wave absorption and EMI shielding efficiency of the Ti 3 C 2 T x /CNTs/ Co nanocomposites, the water-resistant treatment of the surface is particularly important to maintain its electromagnetic attenuation performance in practical applications. In general, PDMS due to its transparency, hydrophobicity, high elasticity, biocompatibility, and easy modeling capability has been widely applied to electronic skins [104], sensors [105], and thermal management [106]. In this work, the Ti 3 C 2 T x /CNTs/Co film was coated by PDMS, which can provide the flexibility and hydrophobicity characters.…”

Section: Resultsmentioning

confidence: 99%

Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion

et al. 2021

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The 2D/1D/0D Ti 3 C 2 T x /carbon nanotubes/Co nanocomposite is successfully synthesized via an electrostatic assembly.Nanocomposites exhibit an excellent electromagnetic wave absorption and a remarkable electromagnetic interference shielding efficiency.The flexible, waterproof, and photothermal conversion performances are achieved.ABSTRACT High-performance electromagnetic wave absorption and electromagnetic interference (EMI) shielding materials with multifunctional characters have attracted extensive scientific and technological interest, but they remain a huge challenge. Here, we reported an electrostatic assembly approach for fabricating 2D/1D/0D construction of Ti 3 C 2 T x /carbon nanotubes/Co nanoparticles (Ti 3 C 2 T x /CNTs/Co) nanocomposites with an excellent electromagnetic wave absorption, EMI shielding efficiency, flexibility, hydrophobicity, and photothermal conversion performance. As expected, a strong reflection loss of -85.8 dB and an ultrathin thickness of 1.4 mm were achieved. Meanwhile, the high EMI shielding efficiency reached 110.1 dB. The excellent electromagnetic wave absorption and shielding performances were originated from the charge carriers, electric/magnetic dipole polarization, interfacial polarization, natural resonance, and multiple internal reflections. Moreover, a thin layer of polydimethylsiloxane rendered the hydrophilic hierarchical Ti 3 C 2 T x /CNTs/Co hydrophobic, which can prevent the degradation/oxidation of the MXene in high humidity condition. Interestingly, the Ti 3 C 2 T x /CNTs/Co film exhibited a remarkable photothermal conversion performance with high thermal cycle stability and tenability. Thus, the multifunctional Ti 3 C 2 T x /CNTs/Co nanocomposites possessing a unique blend of outstanding electromagnetic wave absorption and EMI shielding, light-driven heating performance, and flexible water-resistant features were highly promising for the next-generation intelligent electromagnetic attenuation system.

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Section: Resultsmentioning

confidence: 99%

Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion

et al. 2021

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“…Currently, research is underway on E-skins that combine transparent skin and artificial intelligence (A.I. ), which can be used in fantasy movies, and E-skins for games that pursue entertainment elements [ 282 , 283 , 284 ]. In this way, the development of E-skin is expected to evolve technology that has functions that surpass those of humans.…”

Section: Discussionmentioning

confidence: 99%

Review: Sensors for Biosignal/Health Monitoring in Electronic Skin

Lee

Kim

et al. 2021

Polymers

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Skin is the largest sensory organ and receives information from external stimuli. Human body signals have been monitored using wearable devices, which are gradually being replaced by electronic skin (E-skin). We assessed the basic technologies from two points of view: sensing mechanism and material. Firstly, E-skins were fabricated using a tactile sensor. Secondly, E-skin sensors were composed of an active component performing actual functions and a flexible component that served as a substrate. Based on the above fabrication processes, the technologies that need more development were introduced. All of these techniques, which achieve high performance in different ways, are covered briefly in this paper. We expect that patients’ quality of life can be improved by the application of E-skin devices, which represent an applied advanced technology for real-time bio- and health signal monitoring. The advanced E-skins are convenient and suitable to be applied in the fields of medicine, military and environmental monitoring.

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“…The flexible tactile sensors on account of triboelectric transmission can produce self-powered and high-sensitive characteristics. A flexible triboelectric tactile sensor composed by wrinkled PDMS/MXene composite films under UVO irradiation is prepared, showing an ultrahigh sensitivity ( Figure 3 e,f) [ 96 ]. The optimal sensitivity is 0.18 V/Pa at the range of 10~80 Pa and 0.06 V/Pa between 80 Pa and 800 Pa, better than most reported self-powered tactile sensors ( Figure 3 g).…”

Section: Performances Of Flexible Tactile Sensorsmentioning

confidence: 99%

Recent Advances in Flexible Tactile Sensors for Intelligent Systems

Peng

Yang

et al. 2021

Sensors

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Tactile sensors are an important medium for artificial intelligence systems to perceive their external environment. With the rapid development of smart robots, wearable devices, and human-computer interaction interfaces, flexible tactile sensing has attracted extensive attention. An overview of the recent development in high-performance tactile sensors used for smart systems is introduced. The main transduction mechanisms of flexible tactile sensors including piezoresistive, capacitive, piezoelectric, and triboelectric sensors are discussed in detail. The development status of flexible tactile sensors with high resolution, high sensitive, self-powered, and visual capabilities are focused on. Then, for intelligent systems, the wide application prospects of flexible tactile sensors in the fields of wearable electronics, intelligent robots, human-computer interaction interfaces, and implantable electronics are systematically discussed. Finally, the future prospects of flexible tactile sensors for intelligent systems are proposed.

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A flexible ultra-sensitive triboelectric tactile sensor of wrinkled PDMS/MXene composite films for E-skin

Cited by 257 publications

References 24 publications

Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion

Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion

Review: Sensors for Biosignal/Health Monitoring in Electronic Skin

Recent Advances in Flexible Tactile Sensors for Intelligent Systems

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