Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 151, Issue 7, Pages E257-E260Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1759698
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ne open-circuit voltage increases substantially and stability of dye-sensitized TiO2 solar cells is improved when polymer gel containing poly (vinylidenefluoride-co-hexafluoropropylene) (PVdF-HFP) in N-methyl-2-pyrrolidone replaces commonly used solvents such as acetonitrile (ACN) and 3-methoxypropionitrile (MPN). The energy conversion efficiency of the cell with 6 wt % PVdF-HFP is comparable to that obtainable in ACN and in MPN. The promising effect of PVdF-HFP as a gelator is attributed to its interaction with Li+ ions. (C) 2004 The Electrochemical Society.
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