Gel electrolyte-based flexible electrochromic devices showing subtractive primary colors

Kobayashi, Norihisa; Miura, Shohei; Nishimura, Mami; Goh, Yutaka

doi:10.1016/j.electacta.2007.05.073

Cited by 52 publications

(26 citation statements)

References 6 publications

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“…Other ionically conductive membranes consisting of PVB-LiI with ionic conductivity of 10 −5 -10 −7 S/cm were investigated [14] and also applied in ECD that displayed almost 30% of difference between colored and bleached states. Moreover, Kobayashi et al [15] showed flexible ECDs with gel electrolyte containing PVB, tetra-n-butylammonium perchlorate (TBAP), N-methylpyrrolidone (NMP), ferrocene (Fc) and dimethyl phthalate (DMT) or diacetyl benzene (DAB) or diethyl ester of dicarboxylic biphenyl (DEB). However, those ECDs showed a short time memory of 80 s in an open circuit and its absorbance decreases from 0.45 to 0.35 after 120 cycles of coloration.…”

Section: Introductionmentioning

confidence: 99%

Electrochromic Windows with PVB Electrolytes

Sentanin

Ponez

Pawlicka

2014

Molecular Crystals and Liquid Crystals

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Electrochromic devices (ECDs) with WO 3 /PVB electrolyte/CeO 2 -TiO 2 configuration were assembled and characterized. The ECDs revealed charge density values of 2.9 and 7.8 mC/cm 2 with a cathodic/anodic ratio of 0.9 and 1.0 for the systems containing PVBLiClO 4 and PVB-LiI electrolytes, respectively. The electrochemical stability showed a decrease of charge density, from 7.8 to 3.7 mC/cm 2 as a function of color/bleaching cycling being between 10 and 1,200 th cycles for the ECD with PVB-LiI; and from initial 2.9 to 1.0 mC/cm 2 after 48,000 cycles for the ECD with PVB-LiClO 4 . Moreover, a difference in transmittance of 30% between the ECD's colored and bleached states was also observed.

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Section: Introductionmentioning

confidence: 99%

Electrochromic Windows with PVB Electrolytes

Sentanin

Ponez

Pawlicka

2014

Molecular Crystals and Liquid Crystals

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“…However, at the coloration of the present sandwich-type EC cell with the 70 mm separator between indium tin oxide (ITO) electrodes, anion radicals of dimethyl terephthalate (DMT) generated at the cathode and ferrocenium cations generated at the anode should diffuse to the counter electrode, where they meet and exchange electrons. Accordingly, they return to neutral DMT and Fc, inducing the bleaching of the EC cell even under open-circuit condition [12].…”

Section: Introductionmentioning

confidence: 99%

Phthalate-derivative/TiO2-modified electrode for electrochromic application

Tanaka

Watanabe

Nagashima

et al. 2009

Solar Energy Materials and Solar Cells

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“…Thus, a well-tuned formulation is very essential for high efficiency and for longer cycle life of the device [17][18][19][20][21]. For a polymer electrolyte to be suitable for electrochromic applications, it has to be highly ion conductive, has a good electron donating ability, has low bond rotation energy, thermally and electrochemically stable, has high optical transparency, able to cover a wide range of potential, able to be confined into specific areas, and it has to be cheap but environmentally friendly [14][15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%