The Light Attracting Effect of Pyridine Derivatives Based Quasi-Solid Electrolyte in Dye-Sensitized Solar Cell

The pyridine derivatives are added into acetonitrile based electrolyte to establish framework, then form the quasi solid electrolyte. The ion diffusion of cetylpyridinium chloride and cetylpyridinium bromide based electrolytes is enhanced comparing with the ion diffusion of reference acetonitrile electrolyte. The ordered structure of cetylpyridinuium chloride quasi solid electrolyte has been observed by SEM images. Light scattering effect of cetylpyridinuium chloride quasi solid electrolyte is evidenced by the larger resulted by transmitted and scattered spectra. The light harvesting efficiency of device based on C16Cl is much higher than acetonitrile based device. The cell efficiency of C16Cl and C16Br based device are 5.72% and 6.02%, which are 41% and 48% higher than acetonitrile liquid electrolyte based device. The C16l based device produces low cell efficiency 2.06%, which is 49% decrease compare to the blank device due to the limitation of iodide-triodide transportation in the iodide framework.