Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10248686 | Solar Energy Materials and Solar Cells | 2014 | 7 Pages |
Abstract
In this work we report the role of thickness on electrochromic behavior of nickel oxide (NiO) films deposited by e-beam evaporation at room temperature on ITO-coated glass. The structure and morphology of films with thicknesses between 100 and 500 nm were analyzed and then correlated with electrochemical response and transmittance modulation when immersed in 0.5 M LiClO4-PC electrolyte. The NiO exhibits an anodic coloration, reaching for the thickest film a transmittance modulation of 66% between colored and bleached state, at 630 nm, with a color efficiency of 55 cm2 Câ1. Very fast switch between states was obtained, where coloration and bleaching times are 3.6 s cmâ2 and 1.4 s cmâ2, respectively.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Sónia Pereira, Alexandra Gonçalves, Nuno Correia, Joana Pinto, LuÃs Pereira, Rodrigo Martins, Elvira Fortunato,