Molecular beam epitaxial growth and optical properties of the CdTe thin films on highly mismatched SrTiO3 substrates

High-quality (111)-orientated CdTe thin films are grown on highly mismatched SrTiO3 (001) substrates by molecular beam epitaxy (MBE). Atomic flat surface is achieved when the thickness of the CTELs is below ∼40 nm. A full width at half maximum of ∼110 arcsec is yielded when the thickness of the CTELs is beyond ∼100 nm. Four types of domains appear in the CTELs.253