V2O5, band structure

Fig. 2. Band structure and total DOS of bulk V2O5. The energy bands are shown for characteristic paths connecting high symmetry points of the irreducible part of the orthorhombic Brillouin zone (BZ) which is included at the bottom. All energies e(k) are taken with respect to that of the highest occupied state. The DOS is given in states per unit volume and per eV.

If the surface oxide is of a semiconducting composition (e.g., MoOj, V2O5, and WO3), its electronic band structure can be probed through optical absorption spectroscopy [78]. UV-visible (vis) diffuse reflectance measurement of powders enables experimental determination of the optical absorption gap most commonly estimated through Tauc s relation [33,79-81 ], although other methods exist [80-82]. A Tauc plot linearly extrapolates versus E to zero absorption to... 

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