Performance and Stability of Dye-sensitized Solar Cells with Quasi-solid State Electrolytes base on N-methyl-quinoline Iodide

摘要

We have fabricated dye-sensitized solar cells (DSSCs) with quasi-solid state electrolytes base on N-methyl-quinoline iodide and studied the performance and stability of the cells at different temperatures. The quasi-solid state electrolytes were prepared from polymer gel electrolyte based on N-methyl-quinoline iodide and iodine. Pure-anatase nanocrystalline TiO_2 films with absorption of standard N719 dye were employed as working electrodes. The maximum efficiency of the solar cells was 4.5% under incident light of 100 mW/cm~2. The cells also showed excellent stability for several months under irradiation of sunlight. The ionic conductivity of the electrolytes and the performance of the cells at different temperatures were presented.