Application Abstract: This project will be conducted to study on epitaxial growth of self-ordered ZnO nanostructures and two-dimensional periodically layered oxides.In this project,epitaxial growth of self-ordered ZnO nanostructures on a-plane sapphire substrate will be carried out by adjusting CVD growth conditions and substrate engineering.In order to clarify the growth mechanism,the effect of process conditions on the epitaxial growth of self-ordered ZnO nanostructures will be investigated by microstructure characterization.Furthermore,the improvement in the ZnO crystal quality will be carried out by the lateral epitaxial overgrowth of self-ordered ZnO nano-rods.For epitaxial growth of two-dimensional periodically layered oxides,epitaxial growth of RAO3(MO)m(R=In,Yb;A=Ga,Fe;M=Zn,Mg)homologous oxides will be carried out by sputtering and reactive solid phase epitaxy technique.Homologous oxides with special nanoscale multi-layered structure may exhibit exceptional properties.Thus,such a structure may be regarded as a so-called“natural superlattice”.The research on the optical and electrical properties of RAO3(MO)m with various compositions will be conducted.The microstructure characterization of epitaxial RAO3(MO)m layers will be performed by TEM and XRD.
