High-Temperature and Long-Term Stable Solid-State Electrolyte for Dye-Sensitized Solar Cells by Self-assembly

摘要: Ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate was solidified by silica nanoparticles (> 2 wt %) even up to 85 degrees C. The mechanism of solid-state composites inferred self-assemble through hydrogen bond networks between the anion BF4- and hydroxyl group in surface nanoparticles, which characterized differential scanning calorimetry measurement Fourier transition infrared spectra. composite introduced form high-temperature electrolytes for highly efficient dye-sensitized solar cells with an overall energy-conversion efficiency 4.7% at room temperature 5.0% 60 C under AM 1.5 sunlight illumination (75 mW cm(-2)).