Multicolor vision perception of flexible optoelectronic synapse with high sensitivity for skin sunburn warning

Yang, Yaqian; Li, Ying; Chen, Di; Shen, Guozhen

doi:10.1039/d3mh02154h

Mater. Horiz.

2024

DOI: 10.1039/d3mh02154h

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Multicolor vision perception of flexible optoelectronic synapse with high sensitivity for skin sunburn warning

Yaqian Yang,

Ying Li,

Di Chen

et al.

Abstract: We propose a self-powered flexible optoelectronic synapse based on PEA2SnI4 films for multicolor vision perception and skin sunburn warning.

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Cited by 5 publications

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A Violet‐Light‐Responsive ReRAM Based on Zn₂SnO₄/Ga₂O₃ Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

Shrivastava,

Dai,

Limantoro

et al. 2024

Adv Elect Materials

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Due to the imitation of the neural functionalities of the human brain via optical modulation of resistance states, photoelectric resistive random access memory (ReRAM) devices attract extensive attraction for synaptic electronics and in‐memory computing applications. In this work, a photoelectric synaptic ReRAM (PSR) of the structure of ITO/Zn2SnO4/Ga2O3/ITO/glass with a simple fabrication process is reported to imitate brain plasticity. Electrically induced long‐term potentiation/depression (LTP/D) behavior indicates the fulfillment of the fundamental requirement of artificial neuron devices. Classification of three‐channeled images corrupted with different levels (0.15–0.9) of Gaussian noise is achieved by simulating a convolutional neural network (CNN). The violet light (405 nm) illumination generates excitatory post synaptic current (EPSC), which is influenced by the persistent photoconductivity (PPC) effect after discontinuing the optical excitation. As an artificial neuron device, PSR is able to imitate some basic neural functions such as multi‐levels of photoelectric memory with linearly increasing trend, and learning‐forgetting‐relearning behavior. The same device also shows the emulation of visual persistency of optic nerve and skin‐damage warning. This device executes high‐pass filtering function and demonstrates its potential in the image‐sharpening process. These findings provide an avenue to develop oxide semiconductor‐based multifunctional synaptic devices for advanced in‐memory photoelectric systems.

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A Violet‐Light‐Responsive ReRAM Based on Zn₂SnO₄/Ga₂O₃ Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

Shrivastava,

Dai,

Limantoro

et al. 2024

Adv Elect Materials

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Bio‐Inspired P‐type TeSeO_x Synaptic Transistor Based on Multispectral Sensing for Neuromorphic Visual Multilevel Nociceptor

Zhu,

Li,

Zhang

et al. 2024

Small Methods

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The development of neuromorphic color vision has significant research implications in the fields of machine vision and artificial intelligence. By mimicking the processing mechanisms of energy‐efficient biological visual systems, it offers a unique potential for real‐time color environment perception and dynamic adaptability. This paper reports on a multispectral color sensing synaptic device based on a novel p‐type TeSeOx transistor, applied to a neuromorphic visual multilevel nociceptor. Due to the intrinsic properties of TeSeOx, its narrow bandgap allows for multi‐wavelength (405, 532, 655 nm) response, and its oxide semiconductor‐based persistent photoconductivity converts optical signals into stored electrical signals, successfully emulating key synaptic characteristics such as excitatory postsynaptic current (EPSC), multi‐pulse facilitation, and the transition from short‐term to long‐term memory. Additionally, it simulates learning, forgetting, and relearning behaviors, as well as image memory under tricolor light. Finally, using optical signals as a pain stimulus, the fundamental functions of a nociceptor are realized, including “threshold,” “non‐adaptation,” “relaxation,” and “nociceptive sensitization”. More importantly, by using tricolor light, multilevel pain perception is acheived. These results have the potential to advance fields such as autonomous driving, machine vision, and intelligent alert systems.

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Bioinspired Three-Mode Photosensitive Synaptic LED for Optical Information Processing

Zhao,

Lin,

Zhang

et al. 2024

Nano Lett.

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Inspired by human sense organs, AI is advancing toward multimodal perception, with display technology evolving into intelligent human−computer interaction tools. However, hardware networks with multimodal responses connected by different devices bring problems such as delayed information transfer and inefficiency. Thus, an innovative three-mode photosensitive synaptic LED (PSSL) is first proposed by adding a photosensitive layer indacenodithiophene−benzothiadiazole (IDTBT) to the quantum-dot light-emitting diode (QLED), switched by changing the bias voltage. The self-powered PSSL has a photoresponse range from 310 nm to 808 nm (ultraviolet−near-infrared, UV-NIR). The device exhibits a bipolar response under red and UV light at 1 V. When the voltage reaches the turn-on voltage, the PSSL device turns into a neuromorphic LED, exhibiting conductivity enhancement under red-light irradiation and suppression under UV-light irradiation. As a result, the PSSLs are expected to be applied in the field of optical encryption communication and in neuromorphic display.

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Multicolor vision perception of flexible optoelectronic synapse with high sensitivity for skin sunburn warning

Abstract: We propose a self-powered flexible optoelectronic synapse based on PEA2SnI4 films for multicolor vision perception and skin sunburn warning.

Cited by 5 publications

References 54 publications

A Violet‐Light‐Responsive ReRAM Based on Zn₂SnO₄/Ga₂O₃ Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

A Violet‐Light‐Responsive ReRAM Based on Zn₂SnO₄/Ga₂O₃ Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

Bio‐Inspired P‐type TeSeO_x Synaptic Transistor Based on Multispectral Sensing for Neuromorphic Visual Multilevel Nociceptor

Bioinspired Three-Mode Photosensitive Synaptic LED for Optical Information Processing

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Multicolor vision perception of flexible optoelectronic synapse with high sensitivity for skin sunburn warning

Abstract: We propose a self-powered flexible optoelectronic synapse based on PEA2SnI4 films for multicolor vision perception and skin sunburn warning.

Cited by 5 publications

References 54 publications

A Violet‐Light‐Responsive ReRAM Based on Zn2SnO4/Ga2O3 Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

A Violet‐Light‐Responsive ReRAM Based on Zn2SnO4/Ga2O3 Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

Bio‐Inspired P‐type TeSeOx Synaptic Transistor Based on Multispectral Sensing for Neuromorphic Visual Multilevel Nociceptor

Bioinspired Three-Mode Photosensitive Synaptic LED for Optical Information Processing

Contact Info

Product

Resources

About

A Violet‐Light‐Responsive ReRAM Based on Zn₂SnO₄/Ga₂O₃ Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

A Violet‐Light‐Responsive ReRAM Based on Zn₂SnO₄/Ga₂O₃ Heterojunction as an Artificial Synapse for Visual Sensory and In‐Memory Computing

Bio‐Inspired P‐type TeSeO_x Synaptic Transistor Based on Multispectral Sensing for Neuromorphic Visual Multilevel Nociceptor