TY - JOUR
T1 - Electrochromic behavior of NiO thin films deposited by e-beam evaporation at room temperature
AU - Pereira, Sónia
AU - Gonçalves, Alexandra
AU - Correia, Nuno
AU - Pereira, Luis Miguel Nunes
AU - Martins, Rodrigo Ferrão de Paiva
AU - Fortunato, Elvira Maria Correia
N1 - Sem PDF.
Fundacao para a Ciencia e a Tecnologia 8PTDC/CTM/099124/2008 - ELECTRA;
EXCL/CTM-NAN/0201/2012 - MULTINOX; PEst-C/CTM/LA0025/2013-14)
European Commission (258203; 228144)
PY - 2014/1
Y1 - 2014/1
N2 - 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 cm(2) C-1. Very fast switch between states was obtained, where coloration and bleaching times are 3.6 s cm(-2) and 1.4 s cm(-2), respectively.
AB - 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 cm(2) C-1. Very fast switch between states was obtained, where coloration and bleaching times are 3.6 s cm(-2) and 1.4 s cm(-2), respectively.
KW - Thermal evaporation
KW - Electrochromic devices
KW - Nickel oxide
KW - Chromogenic materials
KW - Nickel oxide
KW - Electrochromic devices
KW - Thermal evaporation
KW - Chromogenic materials
U2 - 10.1016/j.solmat.2013.08.024
DO - 10.1016/j.solmat.2013.08.024
M3 - Article
SN - 0927-0248
VL - 120
SP - 109
EP - 115
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
IS - SI
ER -