Strain‐Insensitive Self‐Powered Tactile Sensor Arrays Based on Intrinsically Stretchable and Patternable Ultrathin Conformal Wrinkled Graphene‐Elastomer Composite

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 32(10)

Published: Dec. 10, 2021

Abstract Tissue‐like intrinsically stretchable electronics have attracted ever‐increasing study attention in recent years as they can form intimate interfaces with skin, endowing devices monitoring tactile and physiological signals the negligibly constraining movement of human body. However, harsh mechanical deformation inevitably leads to degradation or even destroys electronic properties devices. Strain‐insensitive self‐powered triboelectric sensor arrays based on wafer‐scale patterned nanoscale thin conformal wrinkled graphene‐elastomer composite material are demonstrated here. By regulating wrinkle structure composite, stretchability performance be optimized. The fabrication process readily incorporated into photolithography shadow mask techniques without high temperature, annealing, etching, organic solvents operating. An semitransparent pressure array is created, which stretched 100% strain visible output degradation. theoretical modeling points out that unique key element attributes strain‐insensitive property device. This work offers an alternative approach for design novel graphene‐based soft

Language: Английский

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Fabrication, characterization and applications of graphene electronic tattoos

Nature Protocols, Journal Year: 2021, Volume and Issue: 16(5), P. 2395 - 2417

Published: April 12, 2021

Language: Английский

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Energy-efficient, fully flexible, high-performance tactile sensor based on piezotronic effect: Piezoelectric signal amplified with organic field-effect transistors

Nano Energy, Journal Year: 2020, Volume and Issue: 76, P. 105050 - 105050

Published: June 20, 2020

Language: Английский

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2D Materials for Skin‐Mountable Electronic Devices

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(47)

Published: May 16, 2021

Abstract Skin‐mountable devices that can directly measure various biosignals and external stimuli communicate the information to users have been actively studied owing increasing demand for wearable electronics newer healthcare systems. Research on skin‐mountable is mainly focused those materials mechanical design aspects satisfy device fabrication requirements unusual substrates like skin also achieving good sensing capabilities stable operation in high‐strain conditions. 2D are atomically thin possess unique electrical optical properties offer several important features address challenging needs wearable, electronic devices. Herein, recent research progress based exhibit a variety of functions including input output vitro vivo diagnosis reviewed. The challenges, potential solutions, perspectives trends future work discussed.

Language: Английский

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Synthesis of Wafer‐Scale Graphene with Chemical Vapor Deposition for Electronic Device Applications

Advanced Materials Technologies, Journal Year: 2021, Volume and Issue: 6(7)

Published: April 23, 2021

Abstract The first isolation of graphene opens the avenue for new platforms physics, electronic engineering, and materials sciences. Among several kinds synthesis approaches, chemical vapor deposition is most promising growth at wafer‐scale, which compatible with Si‐based device integration protocols. In this review, types, properties, methods are introduced. Many details wafer‐scale by strategies given, including single crystal metal alloy preparation, roll to over Cu, electrochemical transfer technique. Besides, batch‐to‐batch highlighted direct dielectric substrates such as sapphire Si/SiO 2 . transport transparent conductance compared high‐quality crystal. progress proof‐of‐the‐concept briefly recalled in graphene‐based electronics transistors, sensors, integrated circuits, spin valves. Eventually, readers provoked current challenges well future opportunities.​

Language: Английский

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