Low-temperature growth of the CdS cubic phase by atomic-layer deposition on SiC/Si hybrid substrates

A new method has been developed for the epitaxial growth of cadmium sulfide CdS films in a metastable cubic phase on silicon substrates with a buffer layer of epitaxial silicon carbide by atomic layer deposition. This CdS phase is achieved due to the low growth temperature ($\sim$180$^\circ$). The cubic phase was identified by both X-ray diffraction (XRD) and spectral ellipsometry due to the fact that the main peak of CdS absorption is split into two peaks in the hexagonal phase (4.9 eV and 5.4 eV) and is a singlet in the cubic phase (5.1 eV).