Superconducting films with a buffer layer were prepared by aerosol MOCVD on substrates. X-ray diffraction and high- resolution electron microscopy revealed a high degree of epitaxy of the heterostructure without any traces of interfacial reaction. Although both and films grow in a relaxed state, additional strain is incorporated into the structure during cooling from the deposition temperature, which results in a decrease of the lattice parameters perpendicular to the substrate surface. The films exhibit a critical temperature - 88 K with a critical current density of at T = 77.3 K. The angular dependence of the critical current at temperatures above 40 K in magnetic fields up to 0.5 T indicates that the films grown by aerosol MOCVD on the substrate behave as three-dimensional anisotropic superconductors.