Endeavor of Iontronics: From Fundamentals to Applications of Ion‐Controlled Electronics

Advanced Materials, Journal Year: 2017, Volume and Issue: 29(25)

Published: June 5, 2017

Iontronics is a newly emerging interdisciplinary concept which bridges electronics and ionics, covering electrochemistry, solid‐state physics, electronic engineering, biological sciences. The recent developments of devices are highlighted, based on electric double layers formed at the interface between ionic conductors (but electronically insulators) various including organics inorganics (oxides, chalcogenide, carbon‐based materials). Particular attention devoted to electric‐double‐layer transistors (EDLTs), producing significant impact, particularly in electrical control phase transitions, superconductivity, has been difficult or impossible conventional all‐solid‐state devices. Besides that, current state art future challenges iontronics also reviewed for many applications, flexible electronics, healthcare‐related devices, energy harvesting.

Language: Английский

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Ion Gated Synaptic Transistors Based on 2D van der Waals Crystals with Tunable Diffusive Dynamics

Advanced Materials, Journal Year: 2018, Volume and Issue: 30(21)

Published: April 17, 2018

Abstract Neuromorphic computing represents an innovative technology that can perform intelligent and energy‐efficient computation, whereas construction of neuromorphic systems requires biorealistic synaptic elements with rich dynamics be tuned based on a robust mechanism. Here, ionic‐gating‐modulated transistor layered crystals transitional metal dichalcogenides phosphorus trichalcogenides is demonstrated, which produce diversity short‐term long‐term plasticity including excitatory postsynaptic current, paired pulse facilitation, spiking‐rate‐dependent plasticity, dynamic filtering, etc., remarkable linearity ultralow energy consumption ≈30 fJ per spike. Detailed transmission electron microscopy characterization ab initio calculation reveal two‐stage ionic gating effects, namely, surface adsorption internal intercalation in the channel medium, causing different poststimulation diffusive thus accounting for observed respectively. The activity therefore effectively manipulated by tailoring consequent diffusion varied thickness structure van der Waals material as well number, duration, rate, polarity gate stimulations, making present transistors intriguing candidates low‐power systems.

Language: Английский

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Stretchable organic optoelectronic sensorimotor synapse

Science Advances, Journal Year: 2018, Volume and Issue: 4(11)

Published: Nov. 2, 2018

We developed a stretchable organic optoelectronic sensorimotor synapse to mimic biological optical sensory nervous system.

Language: Английский

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Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface

Advanced Materials, Journal Year: 2020, Volume and Issue: 33(19)

Published: Oct. 6, 2020

Abstract Soft robotics inspired by the movement of living organisms, with excellent adaptability and accuracy for accomplishing tasks, are highly desirable efficient operations safe interactions human. With emerging wearable electronics, higher tactility skin affinity pursued user‐friendly human–robot interactions. Fabrics interlocked fibers perform traditional static functions such as warming, protection, fashion. Recently, dynamic fabrics favorable to deliver active stimulus responses sensing actuating abilities soft‐robots wearables. First, responsive mechanisms fiber/fabric actuators their performances under various external stimuli reviewed. Fiber/yarn‐based artificial muscles manipulation assistance in human motion discussed, well smart clothes improving perception. Second, geometric designs, fabrications, mechanisms, fibers/fabrics energy harvesting from body environments summarized. Effective integration between electronic components garments, skin, organisms is illustrated, presenting multifunctional platforms self‐powered potential biomedicine. Lastly, relationships robotic/wearable stimuli, together challenges possible routes revolutionizing robotic wearables this new era proposed.

Language: Английский

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Flexible Neuromorphic Electronics for Computing, Soft Robotics, and Neuroprosthetics

Advanced Materials, Journal Year: 2019, Volume and Issue: 32(15)

Published: Sept. 26, 2019

Flexible neuromorphic electronics that emulate biological neuronal systems constitute a promising candidate for next-generation wearable computing, soft robotics, and neuroprosthetics. For realization, with the achievement of simple synaptic behaviors in single device, construction artificial synapses various functions sensing responding integrated to mimic complicated sensing, is prerequisite. Artificial have learning ability can perceive react events real world; these abilities expand applications toward health monitoring cybernetic devices future Internet Things. To demonstrate flexible successfully, it essential develop nerves replicating functionalities counterparts satisfying requirements constructing elements such as flexibility, low power consumption, high-density integration, biocompatibility. Here, progress addressed, from basic backgrounds including characteristics, device structures, mechanisms nerves, Finally, research directions are suggested this emerging area.

Language: Английский

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All‐Solid‐State Synaptic Transistor with Ultralow Conductance for Neuromorphic Computing

Advanced Functional Materials, Journal Year: 2018, Volume and Issue: 28(42)

Published: Sept. 5, 2018

Abstract Electronic synaptic devices are important building blocks for neuromorphic computational systems that can go beyond the constraints of von Neumann architecture. Although two‐terminal memristive demonstrated to be possible candidates, they suffer from several shortcomings related filament formation mechanism including nonlinear switching, write noise, and high device conductance, all which limit accuracy energy efficiency. Electrochemical three‐terminal transistors, in channel conductance tuned without provide an alternative platform electronics. Here, all‐solid‐state electrochemical transistor made with Li ion–based solid dielectric 2D α‐phase molybdenum oxide (α‐MoO 3 ) nanosheets as is demonstrated. These achieve nonvolatile modulation ultralow regime (<75 nS) by reversible intercalation ions into α‐MoO lattice. Based on this operating mechanism, essential functionalities synapses, such short‐ long‐term plasticity bidirectional near‐linear analog weight update Simulations using handwritten digit data sets demonstrate recognition (94.1%) arrays. results insight application oxides large‐scale, energy‐efficient computing networks.

Language: Английский

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Artificial Synapses Emulated by an Electrolyte‐Gated Tungsten‐Oxide Transistor

Advanced Materials, Journal Year: 2018, Volume and Issue: 30(34)

Published: July 4, 2018

Considering that the human brain uses ≈10

Language: Английский

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Artificial Skin Perception

Advanced Materials, Journal Year: 2020, Volume and Issue: 33(19)

Published: Sept. 15, 2020

Abstract Skin is the largest organ, with functionalities of protection, regulation, and sensation. The emulation human skin via flexible stretchable electronics gives rise to electronic (e‐skin), which has realized artificial sensation other functions that cannot be achieved by conventional electronics. To date, tremendous progress been made in data acquisition transmission for e‐skin systems, while implementation perception within is, sensory processing, still its infancy. Integrating functionality into a sensing system, namely perception, critical endow current systems higher intelligence. Here, recent design fabrication devices summarized, challenges prospects are discussed. strategies implementing utilize either silicon‐based circuits or novel computing such as memristive synaptic transistors, enable surpass skin, distributed, low‐latency, energy‐efficient information‐processing ability. In future, would new enabling technology construct next‐generation intelligent advanced applications, robotic surgery, rehabilitation, prosthetics.

Language: Английский

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Advances in flexible organic field-effect transistors and their applications for flexible electronics

npj Flexible Electronics, Journal Year: 2022, Volume and Issue: 6(1)

Published: Jan. 20, 2022

Abstract Flexible electronics have suggested tremendous potential to shape human lives for more convenience and pleasure. Strenuous efforts been devoted developing flexible organic field-effect transistor (FOFET) technologies rollable displays, bendable smart cards, sensors artificial skins. However, these applications are still in a nascent stage lack of standard high-performance material stacks as well mature manufacturing technologies. In this review, the choice device design FOFET devices circuits, demonstrated summarized detail. Moreover, technical challenges FOFETs future discussed.

Language: Английский

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An artificial spiking afferent nerve based on Mott memristors for neurorobotics

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: Jan. 2, 2020

Abstract Neuromorphic computing based on spikes offers great potential in highly efficient paradigms. Recently, several hardware implementations of spiking neural networks traditional complementary metal-oxide semiconductor technology or memristors have been developed. However, an interface (called afferent nerve biology) with the environment, which converts analog signal from sensors into networks, is yet to be demonstrated. Here we propose and experimentally demonstrate artificial reliable NbO x Mott for first time. The frequency proportional stimuli intensity before encountering noxiously high stimuli, then starts reduce at inflection point. Using this nerve, further build a power-free mechanoreceptor system passive piezoelectric device as tactile sensor. experimental results indicate that our promising constructing self-aware neurorobotics future.

Language: Английский

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