Molecular beam epitaxial growth and optical properties of highly mismatched ZnTe1-xOx alloys

Highly mismatched ZnTe1-xOx(ZnTeO) alloys have been grown by molecular beam epitaxy. X-ray diffraction (XRD) analyses showed that a single-phase ZnTeO layer were grown with a substitutional O composition x up to 1.34% on ZnTe(001) substrate in this experiments. Optical transitions associated with the lower (E-) and upper (E+) conduction subbands resulting from the anticrossing interaction between the localized O states and the extended conduction states of ZnTe were clearly observed, and the dependence of the energy position of these bands on the O composition was consistent with the band anticrossing model. (C) 2012 American Institute of Physics. [doi:10.1063/1.3674310]