Fig. 5
From: CsPbBr3/graphene nanowall artificial optoelectronic synapses for controllable perceptual learning
The image recognition process using a GNWs/CsPbBr3 QDs artificial optoelectronic synapse array. a Time-dependent grayscale images of handwritten digit “8” stimulated with different numbers of 530 nm laser pulses. b Time-dependent grayscale images of the “8” forgetting process after the stimulation with a train of 20 530 nm pulses. c Time-dependent grayscale images of “8” stimulated with five laser pulses at different powers. d Input the grayscale image of handwritten digit “8” with 28 × 28 pixels. e Image recognition process using an ANN. f Weight map simulated by the ANN