Dye sensitized solar cells based on solid state electrolyte with poly (styrene-co-acrylonitril)

Abstract

Solid state electrolytes consisting of iodide salt potassium (KI) and iodine (I₂) dissolved in poly (styrene – co- acrylonitrile (P(S-A))) were prepared by mixtures method and applied to dye sensitized solar cells. The cells were  coated a conducting glass sheet (TCO) by means of  doctor blade technique. The solid state polymer electrolytes were prepared by adding iodide salt potassium (KI) and iodine (I₂)  into solid state polymer electrolyte composed of 1, 2, 4, 5 – tetrakisbromomethyl benzene (TB), propylene carbonate (PC), 1-methyl-3-propylimidazodium iodide (MPI), poly (styrene – co – acrylonitrile) (P(S-A)) and ethylene carbonate (EC). The solid state electrolytes mixtures became homogenous and could not flow under sintering at temperature of 70-80 °C. The dye sensitized solar cells based on the solid state electrolytes with poly (styrene-co-acrylonitril) yielded an open- circuit voltage ( ), the short-circuit current density ( ), fill factor  of 0.582  V, 6.31 mA/cm², and 0.542, respectively, and overall light to electrical energy conversion efficiency  of 2.49 %, under irradiation of  80 mW/cm².