Figure 3.

XPS spectra of the sol–gel-derived TixZrySiz O film. (a) Si 2p, (b) O 1s, (c) Zr 3d, and (d) Ti 2p spectra.

Chang et al. Nanoscale Research Letters 2013 8:340   doi:10.1186/1556-276X-8-340
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