Single-step electrochemical deposition of Mn2+ doped FeS2 thin films on ITO conducting glass substrates: physical, electrochemical and electrocatalytic properties

  • P. PrabukanthanEmail author
  • S. Thamaraiselvi
  • G. Harichandran
  • J. Theerthagiri


Mn2+ doped FeS2 thin films were deposited on ITO coated conducting glass substrate at 50 °C in an aqueous medium by simple electrochemical deposition technique. The structural and phase purity of the Mn2+ doped FeS2 thin films were investigated using XRD technique. The XRD analysis revelaed that the fabricated thin films were cubic structure along with the (200) plane preferential orientation. The diffraction peak slightly shifted towards lower 2θ values which confirmed that doping of Mn ions into FeS2 host matrixes. The calculated band gap energy of Mn2+ doped FeS2 thin films showed a red shift of absorption edge compared to undoped FeS2 thin film. EIS indicated that Mn2+ doped FeS2 thin films showed lower charge transfer resistance with better conductivity nature compared to undoped sample. Moreover, the photo electrochemical measurements carried out for the optimized Mn2+ doped FeS2 thin film which revealed the faster migration of photo-induced charge-carriers. Electro catalytic activity of Mn-doped FeS2 thin films were studied for the redox reaction of iodide/triiodide (I/I3) by using cyclic voltammetry measurement.



One of the authors (P. Prabukanthan) wishes to acknowledge University Grant Commission (UGC), India, for the financial assistance through major research project (MRP) scheme [File No. 43-399/2014(SR)].


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Authors and Affiliations

  1. 1.Materials Chemistry Lab, Department of ChemistryMuthurangam Government Arts CollegeVelloreIndia
  2. 2.Department of Polymer ScienceUniversity of MadrasChennaiIndia
  3. 3.Centre of Excellence for Energy Research, Centre for Nanoscience and NanotechnologySathyabama Institute of Science and Technology (Deemed to be University)ChennaiIndia

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