Mo oxide films with good electrochromic properties were produced by si
ngle-target and dual-target reactive d.c. magnetron sputtering. Dual-t
arget deposition was shown capable of yielding optically functional fi
lms at a rate similar to 20 times higher than that for single-target d
eposition, which is a result of considerable technical interest. (C) 1
997 Elsevier Science S.A.