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    標題: Approaches to gel electrolytes in dye-sensitized solar cells using pyridinium molten salts
    作者: Cheng-Hsien Yang
    Wen-Yueh Ho
    Hao-Hsun Yang
    Mao-Lin Hsueh
    貢獻者: 化粧品應用與管理系
    日期: 2010-04
    上傳時間: 2012-03-29 13:45:54 (UTC+8)
    出版者: Royal Soc Chemistry
    摘要: Imidazolium iodide ionic liquids have a relatively high viscosity, and, as consequence, mass-transport limitation problems restrict their use as solvents for electrolytes. In this study, a series of 1-alkyl-3-carboxypyridinium iodide molten salts, [ACP][I], was used as a gel electrolyte for dye-sensitized solar cells (DSSCs). Without addition of any nano-particles, small molecules, oligomers or polymer plasticizers, these [ACP][I] salts acted as a stiffener, plasticizing the liquid phase electrolyte. An investigation was carried out into the electrochemical properties of these [ACP][I]-based gel electrolytes, and they were found to have an impressively high diffusion constant (DI3−) of 28.5 × 10−6 cm2 s−1 and conductivity (σ) of 4.30 mS cm−1. The photovoltaic performance of this new redox couple was evaluated by employing nanocrystalline TiO2 films with different thicknesses. An energy conversion efficiency of 3.7% was achieved using an 8 μm TiO2 electrode, under simulated solar illumination (AM 1.5, 100 mW cm−2). This efficiency is comparable with the cells fabricated with the liquid electrolyte-Solaronix AN-50 (η 4.0%, reported in the literature).
    關聯: Journal of Materials Chemistry 2010(20):p.6080-6085
    显示于类别:[化妝品應用與管理系(所)] 期刊論文


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