Improvement on the long-term stability of flexible plastic dye-sensitized solar cells

- The durability of flexible DSSCs with TBAI and PMII cation iodides have been investigated under visible light-irradiation and 60 °C-thermal stress aging.
- TBA+ on the TiO2 film surface blocks undesirable interfacial charge recombination to suppress surface protonation.
- The conversion efficiency of the DSSCs maintains 96.9% of baseline efficiency after 1000 h accelerating aging test.