conductivity, current–voltage characteristics, Raman spectroscopy, chronoamperometry, energy-dispersive X-ray spectroscopy (EDS).

Abstract: Thin Bi₂Se₃ films were obtained by electrochemical deposition from non-aqueous electrolytes. The synthesized films were characterized using modern analytical techniques, including X-ray fluorescence analysis (XRF), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Raman spectroscopy, Fourier-transform infrared spectroscopy (FTIR), etc. Their conductivity type was determined, and some semiconductor and photoelectrochemical properties were studied. The current–voltage