ZnO Nanorods Grown on CdxZn1-xO Seed Layers with Various Cd Mole Fractions

Low-Temperature PLD-Growth of Ultrathin ZnO Nanowires by Using ZnxAl1−xO and ZnxGa1−xO Seed Layers

ZnO nanowires (NWs) are used as building blocks for a wide range of different devices, e.g. light emitters, resonators, and sensors. Integration of the NWs into such structures requires a high level of NWs' diameter control. Here, we present that the doping concentration of Zn x Al1-x O and Zn x Ga1-x O seed layers has a strong impact on the NW growth and allows to tune the diameter of the NWs ...

Evolution of Structural and Optical Properties of ZnO Nanorods Grown on Vacuum Annealed Seed Crystallites

In this study, the ambient condition for the as-coated seed layer (SL) annealing at 350 °C is varied from air or nitrogen to vacuum to examine the evolution of structural and optical properties of ZnO nanorods (NRs). The NR crystals of high surface density (~240 rods/μm²) and aspect ratio (~20.3) show greatly enhanced (002) degree of orientation and crystalline quality, when grown on the SLs an...

Optical and morphological properties of MBE grown wurtzite CdxZn1-xO thin films

Wurtzite CdxZn1 xO epilayers with cadmium concentrations ranging from x = 0.02 to 0.30 were investigated using photoluminescence, transmission/reflection spectroscopy, and atomic force microscopy. The CdxZn1 xO photoluminescence peak was found to shift through the visible region from 421 (2.95 eV) to 619 nm (2.0 eV) as the cadmium concentration was increased from 2% to 30%. An additional broad ...

Yellow luminescence in ZnO layers grown on sapphire

Electronic and optical properties of MgxZn1−xO and CdxZn1−xO from ab initio calculations

Isostructural and heterostructural pseudobinary MgxZn1−xO and CdxZn1−xO alloys are studied by combining the wurtzite and the rocksalt polymorphs within a cluster expansion. The computationally demanding calculation of the quasiparticle electronic structure has been achieved for all cluster cells of the expansion using the recently developed HSE03 +G0W0 scheme. These results are used to compute ...