Effect of Ionic Liquids with Different Cations in I−/I3 − Redox Electrolyte on the Performance of Dye-sensitized Solar Cells

Bulletin of the Korean chemical society

Chi-Hwan Han¹ 

关键词: Dye-sensitized solar cell;    Ionic liquid;    High performance;    Photo-voltage enhancement;    Photocurrent enhancement;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The effect of the addition of ionic liquids with four different cations (imidazolium, pyrrolidinium, piperidinium and pyridinium) on the performance of dye-sensitized TiO2 solar cells based on electrolytes containing a tbutylpyridine (TBP) in 3-methoxypropionitrile (MPN) was studied. A total of 18 ionic liquids with mono-, diand tri-alkyl derivatives were used in the present study, and among them a pyridinium cation with a mono-alkyl group showed better cell efficiency than the others. The best photoelectric conversion efficiency, 7.213%, was obtained using 1-hexylpyridinium iodide with an open-circuit photovoltage (Voc) = 0.731 V, a short-circuit photocurrent density (Jsc) = 16.175 mA/cm2, and a fill factor (ff) = 0.610 under AM1.5 and 100 mW/cm2 illumination.

【 授权许可】

Unknown