A 7.5 V window dual-functional planar micro-device based on a biopolymer ionogel electrolyte for charge storage and neuromorphic computing

A dual-functional micro-device integrating charge storage and neuromorphic functionality, enabled by a novel biopolymer ionogel, operates at an exceptionally wide 7.5 V window, achieving 5.78 F cm −2 capacitance and tunable synaptic behaviour.