Jo, Yooyeon Noh, Gichang Park, Eunpyo Lee, Dae Kyu Jeong, Yeonjoo Wi, Heerak Kwak, Joon Young 2024-09-06T06:00:11Z 2024-09-06T06:00:11Z 2024-09-05 2024-10 0960-0779 https://pubs.kist.re.kr/handle/201004/150550 Artificial synaptic devices utilizing nonvolatile memristors with 2D materials show potential for neuromorphic computing systems due to their intriguing electrical properties, simple structure, and capability to emulate biological synaptic behaviors. Here, we fabricated nonvolatile memristors based on 2D multilayer hBN film and demonstrated their analog memory performance along with biological synaptic characteristics, including paired- pulse facilitation and depression (PPF and PPD), and synaptic plasticity. We utilized different voltage scheme algorithms to analyze the impact of synaptic functions on image classification tasks across various pattern datasets through simulations. Our findings reveal that pattern recognition outcomes varied due to the modulation of synaptic plasticity by the applied voltage schemes. We also investigated the relationship between conductance update variations and classification accuracy to highlight the significance of optimized synaptic plasticity in improving image recognition capabilities in large-scale neural networks. Our experimental results contribute to the development of high-performance neuromorphic computing for diverse pattern classification tasks using artificial synaptic devices based on 2D hBN. English Pergamon Press Ltd. Effects of voltage schemes on the conductance modulation of artificial synaptic device based on 2D hBN memristor: Its applications for pattern classifications Article 10.1016/j.chaos.2024.115390 1 Chaos, Solitons & Fractals, v.187 Chaos, Solitons & Fractals 187 N scie scopus 001297606500001 2-s2.0-85201375258 Mathematics, Interdisciplinary Applications Physics, Multidisciplinary Physics, Mathematical Mathematics Physics Article 2-DIMENSIONAL MATERIALS CROSSBAR ARRAYS 2D materials Nonvolatile memristor Artificial synaptic device Synaptic plasticity Pattern classification