化学
双氰胺
钌
碘化物
离子液体
腈
六氟磷酸盐
色素敏化染料
酰亚胺
盐(化学)
电解质
无机化学
联吡啶
晶体结构
高分子化学
有机化学
物理化学
催化作用
电极
作者
Fellicien Mazille,Zhaofu Fei,Dai‐Bin Kuang,Dongbin Zhao,Shaik M. Zakeeruddin,Michaël Grätzel,Paul J. Dyson
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2006-01-21
卷期号:45 (4): 1585-1590
被引量:132
摘要
Ionic liquids containing the nitrile and vinyl functional groups attached to imidazolium cations combined with various anions, e.g., iodide, bis[(trifluoromethyl)sulfonyl]imide ([TFSI]-), or dicyanamide ([N(CN)2]-), have been prepared and characterized. These ionic liquids have been successfully used as electrolytes for dye-sensitized solar cells based on nanocrystalline TiO2 with the amphiphilic ruthenium sensitizer [ruthenium (4,4'-dicarboxylic acid-2,2'-bipyridine)(4,4'-bis(p-hexyloxystyryl)-2,2'-bipyridine)][NCS]2 (coded K-19). The iodide salt was used in 3-methoxypropionitrile-based electrolytes, and the performances of both types of devices were evaluated on the basis of their photocurrent density−voltage characteristics and dark current measurements, demonstrating that the functional groups do not exert a detrimental effect on the performance. The solid-state structure of the nitrile-functionalized salt [C1C3CN(im)]I has also been established by single-crystal X-ray diffraction, revealing extensive hydrogen bonding between the cation protons and the iodide.
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