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.

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