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Ionic-Liquid-like Polysiloxane Electrolytes for Highly Stable Solid-State Dye-Sensitized Solar Cells

Abstract : With the purpose of achieving highly stable and efficient polymer electrolytes for dye-sensitized solar cell (DSSC) applications, a series of new poly(ionic liquids) (PILs), namely, poly(1-N-methylimidazolium-pentylpolydimethylsiloxane)iodide, with different ratios of pentylimidazolium iodide moieties, have been studied and employed to prepare solid-state electrolytes for DSSCs. PILs were further mixed with two types of ionic liquids (ILs), 1-methyl-3-propylimidazolium iodide (MPII) and 1-methyl-3-propylimidazolium bis(trifluoromethylsulfonyl)imide (MPITFSI), and a plasticizer, such as ethylene carbonate (EC), to lower their viscosity and to increase the diffusion coefficient and ionic conductivity. The assembled devices prepared, using the quasi-solid-state electrolytes showed, light-to-electricity conversion efficiencies up to 6% for an active area of 0.2064 cm2. After 250 days, PIL-based cells retained 84% of their initial efficiency. These new findings encourage worldwide practical applications of DSSCs.
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https://hal.univ-grenoble-alpes.fr/hal-01883251
Contributeur : Fannie Alloin <>
Soumis le : jeudi 27 septembre 2018 - 21:51:22
Dernière modification le : jeudi 6 août 2020 - 04:00:13

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Anil Kumar Bharwal, Laura Manceriu, Cristina Iojoiu, Jennifer Dewalque, Thierry Toupance, et al.. Ionic-Liquid-like Polysiloxane Electrolytes for Highly Stable Solid-State Dye-Sensitized Solar Cells. ACS Applied Energy Materials, ACS, 2018, 1 (8), pp.4106 - 4114. ⟨10.1021/acsaem.8b00769⟩. ⟨hal-01883251⟩

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