摘要： In this paper, the possibility of replacing liquid electrolyte in a dye sensitized solar cells with a thin film of conductive polymer material was investigated. Liquid electrolyte in the construction of dye sensitized solar cells leaks and evaporates and leads to corrosion of the electrode, which affects negatively on the conversion efficiency of solar radiation to electricity. The research focuses on the doping of the PVDF-HFP polymer by potassium iodide to improve its electrical conductivity and the development of thin film deposition technology for use in solar cells. Using a scanning electron microscope, with the increase of potassium iodide, changes in the surface morphology of PVDF-HFP were measured. Using a Keithley meter, it was investigated that an increased content of potassium iodide led to a reduction in resistance. The electrical conductivity of the tested samples was calculated. In order to test the suitability of developed materials for application in the construction of photovoltaic cells, a series of dye-sensitized solar cells ITO/TiO2/dye/active layer/Al were prepared. The active layer is made from pure PVDF-HFP and doped with potassium iodide. As a reference solar cell, a standard dye sensitized solar cell with a liquid electrolyte and a counter electrode was also prepared.