fig2

An ultraviolet-visible distinguishable broadband photodetector based on the positive and negative photoconductance effects of a graphene/ZnO quantum dot heterostructure

Figure 2. Graphene/ZnO QD heterostructure. (A) Schematic diagram of graphene/ZnO QD heterostructure. (B) TEM image of ZnO QDs. Inset shows HRTEM image of a single ZnO QD. (C) XRD pattern of ZnO QDs. (D) XPS survey spectrum and high-resolution spectra of (E) O 1s and (F) Zn 2p for ZnO QDs. (G) Raman and (H) absorption spectra of graphene/ZnO QDs.

Microstructures
ISSN 2770-2995 (Online)
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