Laser-reconfigured MoS₂/ZnO van der Waals synapse

Abstract

. The device demonstrates the essential synaptic behaviors, such as excitatory postsynaptic current, modulation of synaptic weight and paired-pulse facilitation. Furthermore, we show that the hysteretic effect of the transfer curves and the post-synapse current triggered by the presynaptic pulses can be modulated by illumination, and the current under illumination conditions is about 10 times greater than that in the dark. These synapses combine photonic with electric neuromorphic functions, thus showing the application prospects of the optoelectronic interfaces for integrated photonic circuits based on mixed-mode electro-optical operation. Hence, this work offers a new landscape for 2D-material electronics and encourages future research on neuro-electronics.