A light-driven device for neuromorphic computing

The Paper of the Day discusses the development of a unique optoelectronic synaptic device that leverages the negative photoconductance property of a single-crystal material called Cs2CoCl4. This device exhibits simultaneous volatile resistive switching response and sensitivity to optical stimuli, making it a promising candidate for optically enhanced neuromorphic applications. The device can perform synaptic functions such as potentiation and depression through electrical and optical stimuli, and it can also be used as a light-tunable artificial neuron that operates via frequency modulation. The authors highlight the potential of this device for applications in artificial intelligence, machine vision, and neuro-robotics, as well as for other uses beyond neuromorphic computing. The work offers a fresh perspective on exploring new materials and strategies for developing optoelectronic devices with cognitive abilities.