Self-powered gold nanowire tattoo triboelectric sensors for soft wearable human-machine interface

An, Tiance; Anaya, David Vera; Gong, Shuping; Yap, Lim Wei; Lin, Fenge; Wang, Ren; Yuce, Mehmet Rasit; Cheng, Wenlong

doi:10.1016/j.nanoen.2020.105295

Cited by 88 publications

(68 citation statements)

References 48 publications

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“…To our best knowledge, the triboelectric tactile sensor that can exhibit such an ultrawide linearity range is rarely reported. [ 9,26–29,32,42–46 ] The linear voltage variation over the full scale of pressure spectrum can also be attributed to the linear effective dielectric constant of the optimized hybrid dielectric, which contributes to the linearly increased triboelectric charge density between the hybrid dielectric and electrodes under pressures (the detailed mechanism and discussions can be found in Figures S25 and S26 in the Supporting Information). Besides the ultrawide linearity range, we also noticed that the design of hybrid dielectric with combined low‐ k MCA and high‐ k RDA played a role in enhancing the triboelectrification and electrostatic induction for output voltage amplification (hence sensitivity enhancement).…”

Section: Resultsmentioning

confidence: 99%

Bio‐Inspired Hybrid Dielectric for Capacitive and Triboelectric Tactile Sensors with High Sensitivity and Ultrawide Linearity Range

Zhou

et al. 2021

Advanced Materials

124

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The trade‐off between sensitivity and linearity is critical for preserving the high pressure‐resolution over a broad range and simplifying the signal processing/conversion of flexible tactile sensors. Conventional dielectrics suffer from the difficulty of quantitatively controlling the interacted mechanical and dielectric properties, thus causing the restricted sensitivity and linearity of capacitive sensors. Herein, inspired by human skin, a novel hybrid dielectric composed of a low‐permittivity (low‐k) micro‐cilia array, a high‐permittivity (high‐k) rough surface, and micro‐dome array is developed. The pressure‐induced series‐parallel conversion between the low‐k and high‐k components of the hybrid dielectric enables the linear effective dielectric constant and controllable initial/resultant capacitance. The gradient compressibility of the hybrid dielectric enables the linear behavior of elastic modulus with pressures, which derives the capacitance variation determined by the effective dielectric constant. Therefore, an ultrawide linearity range up to 1000 kPa and a high sensitivity of 0.314 kPa–1 are simultaneously achieved by the optimized hybrid dielectric. The design is also applicable for triboelectric tactile sensors, which realizes the similar linear behavior of output voltage and enhanced sensitivity. With the high pressure‐resolution across a broad range, potential applications such as healthcare monitoring in diverse scenarios and control command conversion via a single sensor are demonstrated.

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Section: Resultsmentioning

confidence: 99%

Bio‐Inspired Hybrid Dielectric for Capacitive and Triboelectric Tactile Sensors with High Sensitivity and Ultrawide Linearity Range

Zhou

et al. 2021

Advanced Materials

124

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“…Triboelectric devices can also be fabricated into devices with lightweight, structural adaptability, and high flexibility, which are utilized in wearable devices to meet the need for next‐generation IoT. [ 109,101,110 ]…”

Section: Principle and Design Strategy Of Wearable Input Devicesmentioning

confidence: 99%

Wearable Sensors‐Enabled Human–Machine Interaction Systems: From Design to Application

Yin

Wang

Zhao

et al. 2020

Adv Funct Materials

370

227

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In comparison to traditional bulky and rigid electronic devices, the human–machine interaction (HMI) system with flexible and wearable components is an inevitable future trend. To achieve effective, intuitive, and seamless manipulation of high‐performance wearable HMI systems, it is important to develop effective strategies for designing material microstructures on flexible sensors and electric devices with excellent mechanical flexibility and stretchability. The real‐time acquisition of human physiology and surrounding signals through accurate and flexible sensors is the basis of wearable HMIs. Herein, the construction of a wearable HMI system that utilizes sensors, communication modes, and actuators is reviewed. The mechanisms and strategies for designing various flexible sensors based on different mechanisms are analyzed and discussed. The functional mechanism, material selection, and novel design strategies of each part are summarized in detail. The different communication modes in interactive systems and the manufacturing technology of soft machines are also introduced. Additionally, the most advanced applications of wearable HMI systems in intelligent identification and security, interactive controls for robots, augmented reality, and virtual reality have been highlighted. The review concludes with an overview of the remaining key challenges and several ideas regarding the further improvement of wearable HMI systems.

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“…In addition to biochemical energy, biomechanical energy is also abundant in daily life especially those created by human motion, which is a feasible choice since it can be appropriately utilized and transformed into electrical energy. [ 216,217 ] Among different mechanical energy harvesters, triboelectric, and piezoelectric are the two most common approaches which have significant potential for powering wearable electronics. Figure a shows a recent example of human motion powered wearable system via a freestanding triboelectric nanogenerator (TENG).…”

Section: Sustainable Wearable Powered Healthcare Sensorsmentioning

confidence: 99%

Section: Sustainable Wearable Powered Healthcare Sensorsmentioning

confidence: 99%

“…As another example, a triboelectric self‐powered tattoo‐like soft wearable sensor for HMI is presented in Figure 18b. [ 217 ] This wearable sensor was fabricated using elastomer‐bonded V‐AuNWs. The results show that this sensor is able to be micropatterned, peeled off and transferred on human skin.…”

Section: Sustainable Wearable Powered Healthcare Sensorsmentioning

confidence: 99%

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Soft Wearable Healthcare Materials and Devices

Lyu

Gong

Yin

et al. 2021

Adv Healthcare Materials

Self Cite

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In spite of advances in electronics and internet technologies, current healthcare remains hospital‐centred. Disruptive technologies are required to translate state‐of‐art wearable devices into next‐generation patient‐centered diagnosis and therapy. In this review, recent advances in the emerging field of soft wearable materials and devices are summarized. A prerequisite for such future healthcare devices is the need of novel materials to be mechanically compliant, electrically conductive, and biologically compatible. It is begun with an overview of the two viable design strategies reported in the literatures, which is followed by description of state‐of‐the‐art wearable healthcare devices for monitoring physical, electrophysiological, chemical, and biological signals. Self‐powered wearable bioenergy devices are also covered and sensing systems, as well as feedback‐controlled wearable closed‐loop biodiagnostic and therapy systems. Finally, it is concluded with an overall summary and future perspective.

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Self-powered gold nanowire tattoo triboelectric sensors for soft wearable human-machine interface

Cited by 88 publications

References 48 publications

Bio‐Inspired Hybrid Dielectric for Capacitive and Triboelectric Tactile Sensors with High Sensitivity and Ultrawide Linearity Range

Bio‐Inspired Hybrid Dielectric for Capacitive and Triboelectric Tactile Sensors with High Sensitivity and Ultrawide Linearity Range

Wearable Sensors‐Enabled Human–Machine Interaction Systems: From Design to Application

Soft Wearable Healthcare Materials and Devices

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