State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Qing-Qing Wu
State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Miao-Hua Chen
State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Jing-Juan Xu
State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Hong-Yuan Chen
State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
Wei-Wei Zhao
Corresponding author.; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
By emulating the intricate human brain, neuromorphic engineering is playing a pivotal role in reshaping artificial intelligence, with unique synaptic devices forming the cornerstone of its success. This work presents a proof-of-concept study of an organic photoelectrochemical memtransistor (OPECmT) with chemically tunable reconfigurability in fluids. Light stimuli can induce unique hysteretic behavior in this OPECmT. Through mediation by the actual neurotransmitter acetylcholine (ACh), we achieve the on-demand generation of excitatory/inhibitory postsynaptic currents and paired-pulse facilitation/depression with chemically adjustable weights. Notably, highly bionic Hebbian learning is realized in terms of nonlinearity and a millisecond time scale. To demonstrate the OPECmT’s application potential, an ACh-mediated artificial motion reflex arc is developed to mimic autonomous human movements.
