An all-thiophene electrochromic device fabricated with poly(3-methylthiophene) and poly(3,4-ethylenedioxythiophene)

Synthesis of Poly (2,5-dimethoxyaniline) and Electrochromic Properties

“…The increase in potential scans also results in the more anodic oxidation peak and the more cathodic reduction peak. These observations can be explained by heterogeneous transfer kinetics with a decrease in conductivity, counter-ion mobility, and the conjugate length 4,45,46 . The morphology of PDMA film synthesized on ITO glass is a porous structure as shown in Figure 4 In the previous work, Suephatthima et al studied the effect of electrolytes namely oxalic acid, hydrochloric acid, and nitric acid on the morphology of PDMA.…”

A complementary electrochromic device based on Prussian blue and poly(ProDOT-Et2) with high contrast and high coloration efficiency

“…Thirdly, organic monomeric compounds, such as viologen [13]. Lastly, organic conducting polymers, such as polyaniline [14], poly (3,4-propyldioxythiophene) (PProDOT) [15], poly (3,4-propyldioxy pyrrole) [15], poly(3-methyl thiophene) (PMeT) [16], and poly(3,4-ethylenedioxythiophene) (PEDOT) [17]. Organic conducting polymers exhibit rapid optical response, high color contrast, high coloration efficiency, and offer a variety of colors [16]; however, inorganic compounds, such as Prussian blue are known to possess better long-term stability [18].…”

Molybdate hexacyanoferrate (MoOHCF) thin film: A brownish red Prussian blue analog for electrochromic window application

“…Therefore, in this work, we aims at the electrochromic phenomenon of MoOHCF and find that it possesses a color change between brownish red and yellowish, regulating the absorption spectrum below 500 nm. Compared to the red electrochromic polymers such as poly(3,4-ethylenedioxypyrrole) (PEDOP) (changing color from red to blue-gray) [42] and poly(3-methylthiophene) (PMeT) (red to gray) [43] and the red electrochromic metal oxides Co 2 O 3 (black to orange) [44], Mo-doped V 2 O 5 (orange to blue) [45,46], MoOHCF is advantageous for its capacity of exhibiting an almost transparent state upon oxidation, which is essential for smart window application. This motivates us to research the MoOHCF electrodeposited thin film, which has not been studied since its first paper published in more than twenty years ago, and to investigate the possibility of MoOHCF in assembling a promising electrochromic window device with PB.…”