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Page 6 of 10 Yang et al. Microstructures 2023;3:2023005 https://dx.doi.org/10.20517/microstructures.2022.24
Figure 4. Responsivity of graphene/ZnO QD photodetector as a function of light intensity for (A) 460 and (B) 365 nm illumination.
Figure 5. Photoresponsive behavior of graphene/ZnO QD photodetector. Transfer curves under (A) 460 and (B) 365 nm illumination
(VDS = 0.2 V). (C) Schematic diagram of charge transfer process between ZnO QDs and graphene. (D) Responsivity spectrum of
graphene/ZnO QD photodetector and absorption spectrum of ZnO QDs.
scattering plays the leading role, resulting in NPC. Thus, in this context, the NPC response of the graphene
for UV illumination can be converted to a PPC response, thereby realizing the detection and distinction of
UV and visible light using a single graphene/ZnO QD photodetector.
