期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 29, 页码 6080-6085出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm00485e
关键词
-
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 (D(I3-)) of similar to 28.5 x 10(-6) cm(2) s(-1) and conductivity (sigma) of similar to 4.30 mS cm(-1). The photovoltaic performance of this new redox couple was evaluated by employing nanocrystalline TiO(2) films with different thicknesses. An energy conversion efficiency of 3.7% was achieved using an 8 mm TiO(2) 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 (eta 4.0%, reported in the literature).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据