| Title | Agar-Based Solid Polymer Electrolyte-Containing Ionic Liquid for Sustainable Electrochromic Devices |
|---|---|
| ID_Doc | 30056 |
| Authors | Alves, R; Fidalgo-Marijuan, A; Salado, M; Gonçalves, R; Silva, MM; Bazán, B; del Campo, FJ; Costa, CM; Lanceros-Mendez, S |
| Title | Agar-Based Solid Polymer Electrolyte-Containing Ionic Liquid for Sustainable Electrochromic Devices |
| Year | 2023 |
| Published | Acs Sustainable Chemistry & Engineering, 11.0, 46 |
| Abstract | In the scope of circular economy, in order to achieve a new generation of sustainable and environmentally friendly materials and devices, sustainable solid polymer electrolytes emerge as a requirement for applications such as electrochromic devices (ECDs). The dispersion of ionic liquids (ILs) into polymer matrices allows the development of solid polymer electrolytes with high ionic conductivity. Agar-based electrolytes have been developed containing different contents of 1-ethyl-3-methylimidazolium thiocyanate ([Emim][SCN]). The ionic conductivity of the samples varies with the IL concentration and temperature. The highest conductivity value is obtained for the sample with 40 wt % [Emim][SCN], being 2.9 x 10(-3) S cm(-1) at 30 degrees C and 5.6 x 10(-3) S cm(-1) at 90 degrees C. Assembled ECDs with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) screen-printed electrodes show that the optical density depends on the IL content, the coloration efficiency at 90% being 2120 and 1422.8 cm(2) |
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