| 초록 |
It is well known that the presence of traditional liquid electrolytes in dye-sensitized solar cells is related to problems such as precipitation of salts in the electrolyte at low temperature, evaporation of liquids of the electrolyte at high temperature, corrosion and lack of long-term stability of the cells. In order to overcome various problems associated with liquid electrolytes, quasi-solid-state polymer electrolytes which is well known PVDF-HFP can be used in dye-sensitized solar cells. In a DSSCs, this implies a reduction in the driving force for sensitizer regeneration and a possible increase in photovoltage and power conversion efficiency, provided that the rate of charge recombination of the cobalt bipyridyl redox couple is comparable to or slower than that for iodide mediators. |
