Electrochemical impedance characterization and photovoltaic performance of N719 dye-sensitized solar cells using quaternized ammonium iodide containing polyfluorene electrolyte solutions
Journal
Polymers for Advanced Technologies
Journal Volume
22
Journal Issue
12
Pages
1650-1657
Date Issued
2011
Author(s)
Abstract
This study develops a series of titanium oxide electrode-based N719 dye-sensitized solar cells (DSSCs) using quaternized ammonium iodide containing main-chain and star-shaped polyfluorene (MPF-E and SPF-E) electrolyte solutions. The electrochemical impedance and photovoltaic properties of the polyfluorene electrolyte-based DSSCs were studied and compared to those of the poly(ethylene oxide) (PEO) electrolyte-based DSSCs. As with the PEO electrolyte-based DSSCs, the recombination impedance increased with increase in the polymer content for the MPF-E electrolyte-based DSSCs, whereas the photovoltaic performance did otherwise. Nevertheless, the reduction in the photovoltaic properties was not significant for the SPF-E electrolyte-based DSSCs. The electrochemical impedance and photovoltaic properties of the different polymer-based DSSCs are also discussed as a function of the polymer concentration. © 2010 John Wiley & Sons, Ltd.
SDGs
Type
journal article