A study nanocrystalline TiO2 based on dye sensitized solar cells with quasi solid state electrolytes

Abstract

A quasi solid state electrolytes can be done by adding potassium iodide (KI) and iodine (I2) into quasi solid state electrolytes. Consisting 1,2,4,5–tetrakisbromomethyl benzene (TB), γ –butyrolactone (GBL), propylene carbonate (PC), and ethylene carbonate (EC) gelated with sample 1, 2, 3 and 4. Potassium iodide salt poorly soluble in liquid electrolyte, but can dissolve completely in quasi solid state electrolytes. The dye sensitized solar cell (DSSCs) with the quasi solid state electrolytes were fabricated. The results showed that the energy conversion efficiency of light to electricity were 0.052%, 0.126%, 0.121% and 0.125%., respectively, under irradiation of 80 mW/cm2. The performance of the dye sensitized solar cell with quasi solid state electrolytes is more stable than that of liquid electrolytes.