Abstract

Thin V2O5 films were deposited on two different commercial soda-lime glass substrates (A and B) by O2 reactive radio frequency magnetron sputtering using a vanadium target. The influences of the surface energy and roughness of the substrates on the structure and atomic bonding of the films were examined. The film on substrate A was polycrystalline, with eight crystal orientations, whereas the film on substrate B yielded an intense (001) diffraction peak of α-V2O5 and a weak (200) peak of β-V2O5, indicating preferred orientation along these planes. Structural analyses indicated that substrate B with lower surface energy and higher roughness enhanced the formation of a layered α-V2O5 structure.

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