Microporous gel electrolyte for quasi‐solid‐state dye‐sensitized solar cell

作者：Qin Yuancheng; Chen Xiaoxu; Tang Qunwei; Li Qinghua; He Benlin; Chen Kexin; Jin Suyue; Dai Weili; Li Mingjun; Xie Yu; Gao Yunhua

来源：Polymer Engineering & Science, 2013, 54(11).

The extension of electrocatalytic reaction of I?/I3? from counter electrode/gel electrolyte interface to gel electrolyte can significantly enhance the redox kinetics and therefore conversion efficiency of dye‐sensitized solar cells. Microporous gel electrolyte from polypyrrole integrated poly(hydroxyethyl methacrylate/cetytrimethylammonium bromide) [PPy‐integrated poly (HEMA/CTAB)] is successfully synthesized by in‐situ polymerization of pyrrole monomers in three‐dimensional framework of porous poly(HEMA/CTAB) matrix. An ionic conductivity of 12.72 mS cm?1 and activation energy of 8.65 kJ mol?1 are obtained from PPy‐integrated poly(HEMA/CTAB) gel electrolyte. Tafel polarization and electrochemical impedance spectroscopy are employed to characterize the electrocatalytic behaviors of the gel electrolytes. The resultant quasi‐solid‐state dye‐sensitized solar cell shows a light‐to‐electrical conversion efficiency of 6.68%.POLYM. ENG. SCI., 54:2531–2535, 2014....

• 单位
  南昌航空大学; 中国科学院