Figure 5.

Dielectric function spectra of pure and Ag-N-codoped (8,0) ZnO nanotubes. (a) Configurations of Ag1, Ag1N2, Ag1N2,3,4, and Ag1N3,4. (b) Configurations of Ag1N2, Ag1N5, and Ag1N6.

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