fig3
![An ultraviolet-visible distinguishable broadband photodetector based on the positive and negative photoconductance effects of a graphene/ZnO quantum dot heterostructure](https://image.oaes.cc/5dfc63ec-37ff-4719-854f-70d281e74672/5294.fig.3.jpg)
Figure 3. Graphene/ZnO QD photodetector. (A) Photocurrent response under UV and visible illumination (VDS = 0.2 V and VG = 0 V). Time-dependent photoresponse of photodetector under (B) 460 and (C) 365 nm illumination (VDS = 0.2 V and VG = 0 V).