Fig. 5From: High-Performance Ultraviolet Photodetector Based on Graphene Quantum Dots Decorated ZnO Nanorods/GaN Film Isotype Heterojunctionsa The reproducible on/off switching of the device decorated with/without GQDs upon 365 nm light illumination with a 20-s cycle under 10 V bias, respectively. b The enlarged portions of the light-off to light-on and light-on to light-off transitions with/without GQDs decoration, respectivelyBack to article page