Researchers at Seoul Nationale University and Inha University in South Korea Developed Photo-Sensitive Artificial Nerves That Emulated Functions of A Retina by Using 2-Dimensal Carbon Nitride (C3N4) Nanodot Materials.
Further, through the photo-sensitive artificial nerves which selectively deteted ultraviolet (UV) Light and processed the information, Smart Window Platform was demonstrate for in-situ modulation of exhibition to uv rays depending on the degree of uv exhibition and risk.
Neuromorphic Electronics Which Emulate The Biological Nervous Systems Are Promising Candidates to Overcoma The Challenges of Von-Linemann Computing Architecture Such As Energy Efficiency, High-Density Integration, and Data Processing Rate in the Field of Artificial Intelligence (AI) and Internet of Things (IoT).
Particularly, Photo-Sensitive Neuromorphic Electronics are looked at Core Technology for Application of Next-Gene Sensors, Becuse They Can Efficiently Replicate The Functions of Biological Synaps (Between Two Neurons, Key Roles in Learning and Memorizing) and Detect Various Light information.
However, previous investigations Were Only Focused On The Integration of Light Sensing and Synaptic Functions in Single Device, SO Actual Applications Have Not Been Explored.
The Work Reported in Advanced Materials (“Retina-inspired Carbon Nitride-Based Photonic Synaps for Selective Detection of UV Light”) Describes Retina-Infired Photo-Sensitive Neuromorphic Devices By Using Ultraviolet (UV) -Sponsive 2-Dimental carbon nitride nitride Layers to selectively detect and process UV Exposure Information.
UV Light (Wavelength from 10 to 400 nm) is harmful to human health, but the human retina cannot detect uv. Thus, by Emulating the Retina, Photo-Sensitive Neuromorphic Electronics that can selectively detect and process UV stimuli would expand the Human Visual Sense Beyond Light and Be Applicable to Healthcare Devices.
The Research Group Synthesized C3N4 Nanodots Dominantly Absorbing UV Light, and this was introduced as a UV-Responsive Floating-Gate Layer in Transistor Geometry. The Predated Devices Consumed Only 18.06 FJ/Synaptic Event, which is comparable to the Energy Consumption of Biological Synaps.
Furthermore, The Research Team At Seoul Nationale University Demonstrate In-Situ Modulation of Exposure to UV Light by Integrating the Devices with UV Transmittance modulators. These smart system would be further development to combine detection and dose-calm to determine How and when to decreeth uv transmittance for Preventive Health Care.
Professor Tae-Woo Lee, A Professor at Seoul Nationale University Said "This smart system platform Will Be Widely Applicable To Advanced Electronic Skin That is Able to Automatically Adapt to the Changing Light-Dose Environment, Smart Windows That Can Selective Control Transmittance of Strong Uv Lights, smart glasses that detect and block harm UV rays, smart sensors, artificial retina for soft humanoid robots, and neural prosthesis compatible with biological optic nerves. "Lee Said," The Development of Human-Like Robots, Neural prosthes that replicate and expand the Human Sense, and Preventive Health Care Devices can benefit from our work. »
Source: Seoul National University