Abstract
Electrochromic W-doped V2O5 thin films have been deposited on FTO-coated glass substrates by RF magnetron sputtering. The structural, morphological, optical and electrochromic properties of films deposited with various tungsten concentrations were studied. The increase of the doping content induces an amorphization of the films, which contributes to an enhanced cycling performance. High W doping (resulting in WO3) values exhibit high coloration efficiency of ∼ 41 cm2 C−1at 560 nm and large transmittance modulation of 76.9% at 560 nm. Both WO3 and V2O5 are electrochromic materials with very good properties, hence their combination is of interest from both technological and fundamental perspectives.
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