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Jun, Yongseok
Lab for Solar innovation
Research Interests
  • Dye-Sensitized Solar Cell

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High Performance Dye-Sensitized Solar Cells with Alkylpyridinium Iodide Salts in Electrolytes

Cited 13 times inthomson ciCited 9 times inthomson ci
Title
High Performance Dye-Sensitized Solar Cells with Alkylpyridinium Iodide Salts in Electrolytes
Author
Jeon, SeminaJo, YimhyunKim, Kang-JinJun, YongseokHan, Chi-Hwan
Keywords
Alkyl chain; Dye-Sensitized solar cell; Imidazolium; Imidazolium salt; Iodide salts; Methyl group; Pyridinium; Pyridinium iodide; Pyridinium salts
Issue Date
201102
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.3, no.2, pp.512 - 516
Abstract
Pyridinium iodide salts, which are competitive to the conventional imidazolium iodide salts, have been used for dye-sensitized solar cells as iodide sources and ionic conductivities. Pyridinium iodide series are easy to prepare and less expensive than the imidazolium series salts. In this research, quite comparable efficiencies were obtained from electrolytes with pyridinium iodide salts. For the experiments, pyridinium salts with a few, different alkyl chains are applied. When a pyridinium head is modified to picolinium, which has a methyl group on the pyridinium bead, a noticeable V(oc) drop has been observed. However, the length of the alkyl chains on the pyridinium head does not affect V(oc) effectively. The odd-numbered alkyl chains showed slightly lower V(oc) compared to that of the even-numbered alkyl chains. Finally, the performances of the cells with pyridinium salts are compared to those of the conventional cells with imidazolium salts.
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DOI
http://dx.doi.org/10.1021/am101093b
ISSN
1944-8244
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