A Photosensitive Organic Semiconductor for Oxide Memristor-Based Biomimetic Optical Synapse
발표자
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초록
내용
Various types of resistance-tunable mechanisms such as redox reaction, phase-changing, magnetic-tunnelling, and ferroelectricity have been extensively studied to emulate biological synapses for the neuromorphic computing system. In this work, we design an organic semiconductor-inserted nickel oxide (NiOx) memristor that can enhance its synaptic characteristics under light-irradiation. The device shows an analog type light-enhanced conductance update behaviors, and we prove that those can be utilized to demonstrate long-term potentiation (LTP) and depression (LTD) characteristics of a photonic synapse. We believe that this approach can pave an way to realize an artificial neural network for optical nerve system.