Glass Frit Dissolution Influenced by Material Composition and the Water Content in Iodide/Triiodide Electrolyte of Dye-Sensitized Solar Cells
Figure 6
EDX spectra of precipitates on TCO after evaporation of electrolyte. Samples were sputtered with Au to increase conductivity. (a) Area analysis as indicated from the SEM inset of nonaqueous electrolyte precipitate. Sn, O, and F originate from the TCO substrate. C and Na are trace amounts from the electrolyte. (b) Spot analysis of precipitate from cell with 10 wt% H2O-containing electrolyte in contact with GF2. Bi and I are detected due to GF2 and electrolyte interaction. (c) Spot analysis of precipitate from cell with 10 wt% H2O-containing electrolyte in contact with GF3. Zn and I are detected due to GF3 and electrolyte interaction. Si is detected due to increased acceleration voltage, so the soda-lime glass was reached by the electron beam.
