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Self-consistent conduction-band edge potential with respect to the Fermi level.EC − EF (EF = 0 eV) versus radial position for a 50-nm diameter Zn3N2/ZnO core-shell NW. The core has a radius of 24 nm. Inset shows the absorption squared versus energy for the Zn3N2 NWs grown on 1 nm Au/Al2O3.
