(AgxCu1-x)2ZnSn(S,Se)4 Thin Films Prepared By Spray Pyrolysis: The Influence of the Ag Concentration

Thin films of (Ag
_x
Cu
_1-x
)
₂
ZnSn(S,Se)
₄
(ACZTSSe), with x = 0.05 - 0.20, were deposited using the spray pyrolysis method, with subsequent annealing in S + Se atmosphere. Investigation of the chemical composition, structural properties and Raman scattering spectroscopy allowed to conclude that for thin films with up to 15 % of Ag concentration there is stable the formation of the solid solutions of ACZTSSe, while in the thin film with 20 % Ag strong compositional and phase inhomogeneities were found. Investigation of the electrical transport properties showed their insignificant change with increasing the Ag concentration up to 15 %.