Iron Oxide and Iron Sulfide Films Prepared for Dye-Sensitized Solar Cells

摘要： In this paper, the prospects of iron oxide ?lms and their sul?dation for dye-sensitized solar cells (DSSC) are reviewed. Iron oxide thin ?lms were prepared by hollow cathode plasma jet (HCPJ) sputtering, with an admixture of oxygen in the argon working gas and with an iron nozzle as the sputtering target. The discharge was powered by a constant current source in continuous mode and by a constant voltage source in pulsed mode. Plasma composition was measured by an energy-resolved mass spectrometer. Moreover, secondary electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), absorption and Raman spectra of the ?lms are presented. Strong correlation between the color of the iron oxide ?lm and its phase composition was revealed. Iron oxide ?lms were sul?ded at 350 °C. A relatively clean pyrite phase was obtained from the magnetite, while the marcasite with admixture of the pyrite phase was obtained from the hematite. Low in?uence of sul?dation on the ?lms’ microstructure was demonstrated.