Electrochromic (EC) thin films of Nickel oxide have been prepared by
electrochemical deposition technique onto fluorine doped tin oxide (FTO)
coated glass substrate. Different preparation parameters were studied;
mainlythe effect of deposited charge, deposition temperature, and post
annealing temperature.The best EC properties of NiO filmswere obtained
for filmsof 2 coulomb charge, 50°C deposition temperature, and post
annealed films at 300°C. The electrochromic properties obtained for
thesefilmwere coloration efficiency (23.40cm2 C–1), contrast ratio (4.3), and
reversibility (0.83).