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An organic electrochemical transistor for multi-modal sensing, memory and processing

Engineering and Technology

An organic electrochemical transistor for multi-modal sensing, memory and processing

S. Wang, X. Chen, et al.

This groundbreaking research led by Shijie Wang and colleagues unveils an innovative organic electrochemical transistor (OECT) that not only senses but also has memory and processing capabilities. With its unique architecture, the device showcases reconfigurable modes for multi-modal sensing and non-volatile synapses, paving the way for advancements in real-time diagnosis and complex functions such as conditioned reflexes.

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Abstract
This paper reports on an organic electrochemical transistor (OECT) capable of sensing, memory, and processing functions. The device uses a vertical traverse architecture and a crystalline-amorphous channel selectively doped by ions, enabling two reconfigurable modes: a volatile receptor and a non-volatile synapse. As a receptor, it performs multi-modal sensing; as a non-volatile synapse, it exhibits 10-bit analogue states, low switching stochasticity, and good state retention. Homogeneous integration of these devices demonstrates functions like conditioned reflexes and real-time cardiac disease diagnosis via reservoir computing.
Publisher
Nature Electronics
Published On
Apr 27, 2023
Authors
Shijie Wang, Xi Chen, Chao Zhao, Yuxin Kong, Baojun Lin, Yongyi Wu, Zhaozhao Bi, Ziyi Xuan, Tao Li, Yuxiang Li, Wei Zhang, En Ma, Zhongrui Wang, Wei Ma
Tags
organic electrochemical transistor
sensing
memory
processing functions
neuromorphic computing
real-time diagnosis
multi-modal sensing

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