Physicochemical and Electrocatalytic Performance of Chromium doped Iron Pyrite Thin Films

Chromium (Cr3+) doped iron pyrite (FeS2) thin films were deposited on ITO substrate by a facile electrochemical deposition process. The effect of chromium content structural, optical, electrical, morphological, and electrocatalytic behavior the examined. X - ray diffraction studies confirmed formation cubic crystal structure films. Atomic force microscopy results indicate that Cr3+ doping has strong influence crystallinity, surface roughness grain size as-deposited Further, bandgap reduction was found in FeS2 interfacial charge resistance fabricated investigated impedance spectroscopy 3 mole % showed excellent conductivity with low transfer 49 Ω. performance prepared investigated. Cr to exhibit better performance. Anti-structural modeling opted investigate characteristics defects it established Cr3+substitutionmay form cation (Fe2+) vacancies which could be responsible for enhanced photochemical activities Cr-doped