Fig. 5
From: On the analyses of graphene oxide/polypyrrole/zinc oxide nanocomposites
Density of states for the studied structures whereas; a- Alanine, b- Graphene oxide (GrO), c- Polypyrrole (PPy); d- GrO/PPy, e- GrO/PPy/ZnO, f- GrO/PPy/ZnO/COOH, and g- GrO/PPy/ZnO/NH2.
