fig2
![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.2.jpg)
Figure 2. Graphene/ZnO QD heterostructure. (A) Schematic diagram of graphene/ZnO QD heterostructure. (B) TEM image of
Figure 2. Graphene/ZnO QD heterostructure. (A) Schematic diagram of graphene/ZnO QD heterostructure. (B) TEM image of
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