Beschreibung:
<jats:p>This paper reports the enhancement of the electrochromic properties in the infrared, IR,
region of radio frequency sputtered WO3 thin films thanks to a careful optimization of the
deposition conditions. From the combination of various techniques of characterization, the optical
performances, in particular, the contrast in reflectance between the inserted state and the deinserted
one, upon cycling in H3PO4 liquid electrolyte, are correlated to the film morphology and
composition. Films, grown in higher chamber pressure, exhibiting a lower density and a O/W ratio
higher than 3, show the most promising behavior. Finally, first trends on the incorporation of the
WO3 single layer in full electrochromic devices are discussed.</jats:p>