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http://dx.doi.org/10.5012/bkcs.2013.34.9.2583

Novel Pyridinium Iodide Containing Siloxane High Performance Electrolyte for Dye-Sensitized Solar Cell  

Lee, Soonho (Department of Applied Chemistry, Konkuk University)
Jeon, Youngtae (Department of Applied Chemistry, Konkuk University)
Lim, Youngdon (Department of Applied Chemistry, Konkuk University)
Cho, Younggil (Department of Applied Chemistry, Konkuk University)
Lee, Sangyoung (Department of Applied Chemistry, Konkuk University)
Kim, Whangi (Department of Applied Chemistry, Konkuk University)
Publication Information
Abstract
A new type of solid and gel-state ionics based on siloxane pyridinium iodides was synthesized and used as electrolytes in dye-sensitized solar cells. The resulting electrolytes were characterized by $^1H$ NMR spectroscopy, TGA and diffusion coefficient. The synthesized siloxane pyridinium iodide electrolytes have characteristics of different chain length of siloxane moieties. The ion conductivities were given 2.7-3.2 S/cm. Among the three SiDPIs based electrolytes, DSSC employing the SiDPI2 gives an open circuit voltage of 0.704 V, a short-circuit current of 15.85 $mA/cm^2$ and conversion efficiency of 6.8% under light intensity of 100 $mW/cm^2$. In addition, the performance of the DSSCs showed relatively reasonable compared with the propylpyridinium iodide (PPI) electrolyte.
Keywords
Ionic liquid; Electrolyte; Dye sensitized solar cell; Pyridinium iodide; DSSCs;
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