All solid-state electrochromic devices with gelatin-based electrolyte

Avellaneda, César O.; Vieira, Diogo F.; Al-Kahlout, Amal; Heusing, Sabine; Leite, E. R.; Pawlicka, Agnieszka; Aegerter, Michel A.

doi:10.1016/j.solmat.2007.02.025

Cited by 89 publications

(33 citation statements)

References 15 publications

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“…The obtained results are better or comparable to many other results reported for ECDs with cellulose derivative, and other polysaccharide-based electrolytes. For example, the ECD with glass/ ITO/WO 3 /agar-electrolyte/CeO 2 -TiO 2 /ITO/glass ECD configuration showed DT = 24% at the wavelength of 550 nm [64]; with Nb 2 O 5 / gelatin-electrolyte/(CeO 2 ) 0.81 -TiO 2 showed DT = 18% at 550 nm [65], and with glass/ITO/NiO/carboxymethylcellulose-electrolyte/ITO/ glass showed DT = 45% at 600 nm [66].…”

Section: Resultsmentioning

confidence: 99%

Hydroxypropyl cellulose-based gel electrolyte for electrochromic devices

Ledwon

Andrade

Łapkowski

et al. 2015

Electrochimica Acta

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Section: Resultsmentioning

confidence: 99%

Hydroxypropyl cellulose-based gel electrolyte for electrochromic devices

Ledwon

Andrade

Łapkowski

et al. 2015

Electrochimica Acta

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“…Also, small ECDs with good color/bleaching properties have been already manufactured with these SPEs [15,20,21]. Promising results have also been obtained for 6×8 cm 2 ECDs with Nb 2 O 5 :Mo electrochromic coatings and gelatin-based electrolyte [22].…”

Section: Introductionmentioning

confidence: 99%

Gelatin-based protonic electrolyte for electrochromic windows

Al-Kahlout

Vieira

Avellaneda

et al. 2009

Ionics

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Proton-conducting gel polymer electrolytes based on gelatin plasticized with glycerol and containing acetic acid were investigated, characterized, and applied to electrochromic window. For glycerol contents varying from 7% to 48%, the conductivity of the uniform and predominantly amorphous gel electrolyte was found to follow a Vogel-Tamman-Fulcher behavior with the temperature. Typically, for the electrolyte chosen to make 7×2 cm 2 electrochromic smart window with the configuration: glass/ fluor-doped tin oxide (FTO)/WO 3 /gelatin electrolyte/CeO 2 -TiO 2 /FTO/glass and containing 28% of glycerol, the conductivities were found to be of the order of 5×10 −5 S/cm at room temperature and 3.6×10 −4 S/cm at 80°C. The device was characterized by spectroelectrochemical techniques and was tested up to 10,000 cycles showing a fast coloring/ bleaching behavior, where the coloring process was achieved in 10 s and the bleaching in 2 s. The transmission variation at the wavelength of 550 nm was about 15%. The cyclic voltammograms showed a very good reversibility of the cathodic/anodic processes, and the charge density was about 3.5 mC/cm 2 . The memory tests showed that the transmittance in the colored state increased by 8% in 90 min after removing the potential.

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“…as cellulose acetate (CA) [2], starch [3], gelatin [4] and chitosan [5] and biodegradable synthetic polymer such as poly (vinyl alcohol) (PVA) [6] which are being used as polymer hosts for obtaining new polymer electrolytes for their applications in various electrochemical devices such as batteries, sensors and electrochromic windows. It is worthwhile to mention that poly-!-caprolactone (PCL) is a linear aliphatic semicrystalline thermoplastic polyester having a low melting point of around 60°C and a glass transition temperature of about -60°C which may be completely degraded in the presence of microbes or aqueous medium by the hydrolysis of ester bonds [7] and its mechanical property is good as well.…”

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Synthesis and characterization of an electrolyte system based on a biodegradable polymer

Sownthari¹,

Suthanthiraraj²

2013

Express Polym. Lett.

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A polymer electrolyte system has been developed using a biodegradable polymer namely poly-ε-caprolactone (PCL) in combination with zinc triflate [Zn(CF3SO3)2] in different weight percentages and characterized during this investigation. Free-standing thin films of varying compositions were prepared by solution casting technique. The successful doping of the polymer has been confirmed by means of Fourier transform infrared spectroscopy (FTIR) by analyzing the carbonyl (C=O) stretching region of the polymer. The maximum ionic conductivity obtained at room temperature (25°C) was found to be 8.8x10–6 S/cm in the case of PCL complexed with 25 wt% Zn(CF3SO3)2 which is five orders of magnitude higher than that of the pure polymer host material. The increase in amorphous phase with an increase in salt concentration of the prepared polymer electrolyte has also been confirmed from the concordant results obtained from X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopic (SEM) analyses. Furthermore, the electrochemical stability window of the prepared polymer electrolyte was found to be 3.7 V. An electrochemical cell has been fabricated based on Zn/MnO2 electrode couple as an application area and its discharge characteristics were evaluated

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All solid-state electrochromic devices with gelatin-based electrolyte

Cited by 89 publications

References 15 publications

Hydroxypropyl cellulose-based gel electrolyte for electrochromic devices

Hydroxypropyl cellulose-based gel electrolyte for electrochromic devices

Gelatin-based protonic electrolyte for electrochromic windows

Synthesis and characterization of an electrolyte system based on a biodegradable polymer

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