Abstract
The long-term stability of dye-sensitized solar cells (DSCs) based on an amphiphilic ruthenium sensitizer, CYC-B6L was studied. When the surface of the TiO2 electrode was passivated with a co-adsorbent, chenodeoxycholic acid (CDCA), the resulting DSC reveals very good long-term stability with over 87% of initial performance under a 1000 h prolonged light-irradiation and thermal stress (60 °C) aging, which is as good as the state-of-the art robust device. The solvent used in dye bath also affects the long-term stability of the DSC devices. The effect of co-adsorbent and the impact of the dye bath solvents on the device durability were investigated using the electrochemical impedance spectroscopy.
Original language | English |
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Pages (from-to) | 70-77 |
Number of pages | 8 |
Journal | Solar Energy Materials and Solar Cells |
Volume | 108 |
DOIs | |
State | Published - 2013 |
Keywords
- Co-adsorbent
- Dye bath solvent
- Dye-sensitized solar cells
- Long-term stability