Artificial neuromorphic cognitive skins based on distributed biaxially stretchable elastomeric synaptic transistors

Abstract

Significance Enabling distributed neurologic and cognitive functions in soft deformable devices, such as robotics, wearables, skin prosthetics, bioelectronics, etc., represents a massive leap in their development. The results presented here reveal the device characteristics of the building block, i.e., a stretchable elastomeric synaptic transistor, its characteristics under various levels of biaxial strain, and performances of various stretchy distributed neuromorphic devices. The stretchable neuromorphic array of synaptic transistors and the neuromorphic imaging sensory skin enable platforms to create a wide range of soft devices and systems with implemented neuromorphic and cognitive functions, including artificial cognitive skins, wearable neuromorphic computing, artificial organs, neurorobotics, and skin prosthetics.

Bidirectional Synaptic Phototransistor Based on Two-Dimensional Ferroelectric Semiconductor for Mixed Color Pattern Recognition

“…A detailed comparison of other optoelectronic synaptic devices is presented in Table S1. The configurable potentiation and depression characteristics are achieved in our optoelectronic synapse under optical pulse stimulation, corresponding to the positive and negative synaptic weights in an artificial neural network, which is of great significance for neuromorphic computing. − …”

Dynamics of the judgment of tactile stimulus intensity

“…Neuromorphic engineering has made great strides in fabricating sensors that promise, with further development, to replicate many of the sensory functions present in the real skin of living organisms (Chortos et al 2016, Lee et al 2020, Shim et al 2022, Liu et al 2022. While high-acuity, high-sensitivity, reliable, durable artificial sensors are a requisite to building agents that can sense the world and behave accordingly (Chicca et al 2014, Indiveri and Liu 2015, Bartolozzi et al 2022, such sensors are just the starting point.…”

Flexible multiterminal photoelectronic neurotransistors based on self‐assembled rubber semiconductors for spatiotemporal information processing

“…Recently, plenty of substantial attempts have been made to develop neuromorphic devices and systems inspired by the human brain, with the ultimate goal of constructing intelligent systems comparable to the human brain. [1][2][3][4][5] Flexible electronics are mechanically soft and stretchable and are widely used in flexible electronic skins, [6][7][8][9] human-machine interfaces, [10][11][12] and soft robotics. [13][14][15] Therefore, they are widely concerned and rapidly developed worldwide.…”