Structural and optical properties of Sb x Se y thin films obtained by chemical molecular beam deposition method from Sb and Se precursors

Abstract

Sb x Se y thin-films were obtained by chemical-molecular beam deposition (CMBD) on soda-lime glass from Sb and Se precursors. By the precise control of the Sb/Se ratio, Sb 2 Se 3 thin films with stoichiometric composition were successfully obtained. The elemental and phase composition, as well as the crystal structure of Sb x Se y thin-films, were studied by energy-dispersive X-ray microanalysis, X-ray diffraction, Raman spectroscopy, scanning electron microscopy and atomic force microscopy. The optical bandgap of the films was determined from the absorption spectra acquired by a spectrophotometer. The physical properties of Sb x Se y thin films with different compositions were investigated.