Effect of lithium iodide addition on poly(ethylene oxide)-poly(vinylidene fluoride) polymer-blend electrolyte for dye-sensitized nanocrystalline solar cell

A study was carried to examine the effect of lithium iodide concentration on the conduction behavior of poly(ethylene oxide)-poly(vinylidene fluoride) (PEO-PVDF) polymer-blend electrolyte and the corresponding performance of the dye-sensitized solar cell (DSSC). The results showed that the changes of conduction behavior and the changes of [I.sub.3.sup.-} and [I.sup.-] concentrations in the electrolytes influenced the final performance variation of the corresponding DSSC with varying LiI concentration.