Figure 3.

Band structures of pure and Ag-N-codoped (8,0) ZnO nanotubes. (a) Pure (8,0) ZnO nanotube, (b) Ag1 configuration, (c) Ag1N2 configuration, (d) Ag1N3,4 configuration, (e) Ag1N2,3,4 configuration, (f) Ag1N5 configuration, and (g) Ag1N6 configuration.

Feng et al. Nanoscale Research Letters 2013 8:365   doi:10.1186/1556-276X-8-365
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