Document Detail


High Performance Dye-Sensitized Solar Cells with Alkylpyridinium Iodide Salts in Electrolytes.
MedLine Citation:
PMID:  21268664     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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 head, 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.
Authors:
Semina Jeon; Yimhyun Jo; Kang-Jin Kim; Yongseok Jun; Chi-Hwan Han
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-1-26
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  -     ISSN:  1944-8244     ISO Abbreviation:  -     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-1-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Photovoltaic Research Center, Korea Institute of Energy Research, 71-2, Jangdong, Yuseong, Daejeon 305-343, Republic of Korea.
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