Ultrathin Gallium Nitride Quantum-Disk-in-Nanowire-Enabled Reconfigurable Bioinspired Sensor for High-Accuracy Human Action Recognition

• A novel GaN/AlN-based ultrathin quantum-disks-in-nanowires sensor was fabricated, demonstrating voltage bias tunable response characteristics to light stimuli. • Image enhancement functionality and a robust reservoir computing system were demonstrated based on the voltage tunable long-term and short-term persistent photocurrent respectively. • A high-performance artificial vision system with the two integrated functions was demonstrated, achieving a remarkable improvement in human action recognition. • The synergistic interaction of two photoresponse modes within a single device increased HAR recognition accuracy from 51.4% to 81.4%.