뉴로모픽 컴퓨팅을 위한 차세대 전기화학적 이온 시냅스의 연구 현황

• 영문명: Recent Advances in Next-Generation Electrochemical Ionic Synapse for Neuromorphic Computing
• 발행기관: 한국세라믹학회
• 저자명: 김한주(Hanju Kim) 정우빈(Woo-Bin Jung)
• 간행물 정보: 『세라미스트』제28권 제1호, 16~36쪽, 전체 21쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2025.03.31

국문 초록

Neuromorphic computing, inspired by the structure and function of biological neural networks, offers a promising alternative to traditional von Neumann architectures by integrating memory and computation for enhanced energy efficiency and processing speed. Electrochemical ionic synapses (EIS) have emerged as a next-generation memory technology, leveraging the reversible insertion and extraction of mobile ions to modulate conductance. Among various implementations, lithium-ion and proton-based EIS devices have gained attention due to their high tunability, fast response, and energy efficiency. This review delves into recent advancements in EIS technology. Lithium-ion-based EIS devices, employing transition metal oxides such as LiCoO2 and LixTiO2, demonstrate stable and scalable synaptic behavior. Meanwhile, proton-based EIS, utilizing materials like WO3 and MoO3, offer rapid ion transport and complementary metal-oxide-semiconductor compatibility, paving the way for practical neuromorphic hardware. We discuss the critical challenges related to material selection, retention stability, and large-scale integration, while exploring future directions for advancing EIS-based computing. By providing insights into the underlying mechanisms and engineering strategies, this review aims to support the development of energy-efficient and high-performance neuromorphic systems, bringing artificial intelligence closer to the capabilities of the human brain.

목차

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ACKNOWLEDGEMENTS

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키워드

Electrochemical ionic synapse Ionic transistor Neuromorphic computing Protonic memristor