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Light Sensing Artificial Synapse Based on Zinc Oxynitride for Neuromorphic Applications

Publication Type : Journal Article

Publisher : Institute of Electrical and Electronics Engineers (IEEE)

Source : IEEE Sensors Letters

Url : https://doi.org/10.1109/lsens.2024.3391837

Campus : Amritapuri

School : School of Engineering

Year : 2024

Abstract : In this letter, we have demonstrated an optoelectronic synapse based on zinc oxynitride (ZnON) thin films. Unlike other amorphous oxide semiconductors, which respond mostly to UV, these ZnON films respond to blue region of the visible spectrum as well. The essential synaptic functions of the human brain, such as, sensory memory, short-term memory, long-term memory, duration-time-dependent plasticity, and paired pulse facilitation (PPF), have been demonstrated using ZnON. The fabricated ZnON synapse shows a PPF index of 140% for UV and 130% for blue light, respectively. The feasibility of utilizing these synaptic devices for neuromorphic computing has been successfully demonstrated by implementing xor Boolean logic in a neural network circuit.

Cite this Research Publication : Roshni Oommen, Kiran Jose, Anjana J G, Swahum Gandhi, Venu Anand, Aswathi R Nair, Light Sensing Artificial Synapse Based on Zinc Oxynitride for Neuromorphic Applications, IEEE Sensors Letters, Institute of Electrical and Electronics Engineers (IEEE), 2024, https://doi.org/10.1109/lsens.2024.3391837

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