A Dual‐Organic‐Transistor‐Based Tactile‐Perception System with Signal‐Processing Functionality

Abstract

Organic-device-based tactile-perception systems can open up new opportunities for the next generation of intelligent products. To meet the critical requirements of artificial perception systems, the efficient construction of organic smart elements with integrated sensing and signal processing functionalities is highly desired, but remains a challenge. This study presents a dual-organic-transistor-based tactile-perception element (DOT-TPE) with biomimetic functionality by the construction of organic synaptic transistors with integrated sensing transistors. The unique geometry of the DOT-TPE permits instantaneous sensing of pressure stimuli and synapse-like processing of an electric signal in a single element. More importantly, these organic-transistor-based tactile-perception elements can be built into arrays to serve as bionic tactile-perception systems. The combined biomimetic functionality of tactile-perception systems, together with their promising features of flexibility and large-area fabrication, makes this work represent a step forward toward novel e-skin devices for artificial intelligence.

Ionotronic Neuromorphic Devices for Bionic Neural Network Applications

“…In the past few years, ionotronic transistors or memristors were proposed to mimic advanced neural functions. By connecting pressure sensors and oscilloscope with neuromorphic devices and adoping mathematical modeling and software simulation, advanced neural functions are simulated, including logic function, image memorization, pattern recognition, face recognition, classic conditioning, tactile‐perception system, etc. In this section, we shortly discuss these achievements.…”

Retina‐Inspired Carbon Nitride‐Based Photonic Synapses for Selective Detection of UV Light

“…To emulate visual perception of retina, photonic synapses can combine two functions of sensing and synaptic elements in a single device with a more compact form than the conventional one that consists of two devices . The dual functions of artificial synapse and photosensor would give abilities that are beyond those of a simple sensing device, i.e., photonic synapses can process detected light signals and track the history including light intensity, and the number, duration, and frequency of exposure . Thus, these photonic synapses are applicable for smart sensors for the Internet of Things, biomedical electronics, soft robots, and neural prostheses…”

Recent Progress in Three‐Terminal Artificial Synapses: From Device to System

“…Another limitation is that these electrically stimulated devices have limited operating speed. Recently, optoelectronic synapses and photonic synapses have been demonstrated; they may lead to reduction in electrical energy loss, increase in bandwidth, robustness, and ultrafast signal transmission . The light‐stimulated synapse opens up a new opportunity for extending current neuromorphic systems in terms of system complexities and functionalities.…”