Maryam Bayat; Hossein Izadan; Carlos Aleman; Ferancesc Estrany; Dariush Semnani; Mohammad Dinari; Gonzalo Guirado
Abstract
The color behavior of the polypyrrole electrochromic films (PEFs) doped with three types of dopants;perchloride (ClO4-), the anionic surfactant of sodium dodecyl sulfate (SDS), and ...
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The color behavior of the polypyrrole electrochromic films (PEFs) doped with three types of dopants;perchloride (ClO4-), the anionic surfactant of sodium dodecyl sulfate (SDS), and dye molecule of acid red18 (AR18) was analyzed with a spectroelectrochemical device. The spectroelectrochemical properties ofthe films were obtained at different potentials between ±1V and in the wavelength range of 300-1100 nm.The color coordinates of the films were calculated using CIELAB, CIExyY, and the RGB of characterizeddisplay color spaces. The results showed that the color of the PEFs at neutral and redox states can bechanged by the use of different dopants, especially the dye molecule. Also, in the presence of the AR18,the color gamut of the PEFs changed and expanded. In addition, the CIELAB color differences betweenreduction (-1V) and oxidation (+1V) states in PPy/ClO4-, PPy/AR18, and PPy/SDS were 32, 38, and 42,respectively.