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Nickel Oxide–Based Heterostructures with Large Band Offsets

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Figure

Table 1. Literature values for the valence and conduction band offsets for the ZnO/NiO heterocontact.
Figure 4. Current–density voltage relations of a ZnO/eclipse-NiO (top panel) and ZnO=PtO x Schottky (bottom panel) solar cell under UV  illumi-nation for different intensities, given relative to the solar terrestrial UV power density
Figure 6 shows doping pro fi les, obtained by C  V measure- measure-ments, from an NiO-based and a Schottky contact solar cell in the dark state and illuminated by the UV LED (a neutral density fi lter was used to reduce the power density to 16 mW cm 2 ).
Figure 7. Simulated band diagram of a thin NiO/CdO heterostructure in thermodynamical equilibrium
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