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[SmartMat] Vertical-organic-nanocrystal-arrays for Crossbar Memristors with Tuning Switching Dynamics toward Neuromorphic Computing

Releasing Institution: Date Posted:2021/04/14

Fangxu Yang,*# Lingjie Sun,# Qingxi Duan, Huanli Dong, Zhaokun Jing, Yuchao Yang, Rongjin Li, Xiaotao Zhang, Wenping Hu* and Leon Chua, Vertical-organic-nanocrystal-arrays for Crossbar Memristors with Tuning Switching Dynamics toward Neuromorphic ComputingSmartMat 2021, 2, 99-108. DOI:10.1002/smm2.1022


Abstract:

Memristors proposed by Leon Chua provide a new type of memory device for novel neuromorphic computing applications. However, the approaching of distinct multi‐intermediate states for tunable switching dynamics, the controlling of conducting filaments (CFs) toward high device repeatability and reproducibility, and the ability for large‐scale preparation devices, remain full of challenges. Here, we show that vertical‐organic‐nanocrystal‐arrays (VONAs) could make a way toward the challenges. The perfect one‐dimensional structure of the VONAs could confine the CFs accurately with fine‐tune resistance states in a broad range of 103 ratios. The availability of large‐area VONAs makes the fabrication of large‐area crossbar memristor arrays facilely, and the analog switching characteristic of the memristors is to effectively imitate different kinds of synaptic plasticity, indicating their great potential in future applications.