Figure 7.

XPS characteristics. Ta 4f spectra for (a) TaOx/W and (b) TiOx/TaOx/W structures. (c) Ti 2p spectrum. W 4f and WO34f spectra for the (d) TaOx/W and (e) TiOx/TaOx/W structures [22,114].

Prakash et al. Nanoscale Research Letters 2013 8:418   doi:10.1186/1556-276X-8-418
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