Lab. of elettrochemistry and photoelettrochemistry (Padua)

In this facility, there are:

  • Galvanostat/Potentiostat (Autolab, Amel, Biologic): electrochemical instruments for step potential and sweep potential techniques also for high current experiments (booster 10A).
  • Frequency analyser with electrochemical interface for EIS (electrochemical impedance spectroscopy) measurements (Autolab, Solartron).
  • Photo-electrochemical set-up for registration of photo-spectra and (photo)current-potential curves for the study of semiconductors or passive layers.
  • EQUIPMENT:
    • Potentiostat/Galvanostat Autolab PGStat 302N equipped with EIS module;
    • Booster Autolab high current applications (10 A);
    • Potentiostat/Galvanostat Bio-Logic SP300;
    • Potentiostat/Galvanostat Solartron with FRA for impedance measurement;
    • Potentiostat/Galvanostat AMEL with MPLI interface.
    • Photo-electrochemical set-up consisting of potentiostat, lock-in amplifier, light sources, monochromator, chopper and home-made interface.
Cyclic Voltammetry (20 mV s-1) recorded in NaOH 1M deaerated solution with Ni and Cu-Ni alloy electrodes
Photocurrent action spectrum of a CdS layer deposited on Ag, recorded in 1 M NaOH + 1 M Na2S. Inset: direct transition plot, the intercept shows the bandgap energy Eg = 2.42 eV, in agreement with literature.