Vapor-solid growth ZnO:ZrO2 micro and nanocomposites

Microstructures of ZnO and ZrO2 the corresponding composites have been grown by Vapor-Solid method. A detailed characterization their structural, compositional optical properties has performed. X-ray diffraction (XRD) Raman spectroscopy measurements, let us identify two main phases, wurtzite monoclinic ZrO2, reinforcing hypothesis ZnO/ZrO2 composite formation. Scanning Electron Microscopy observations reveal presence different morphologies depending on synthesis conditions. Chemical composition was analyzed energy dispersive (EDX) spectroscopy. Luminescence were studied photoluminescence cathodoluminescence. Our results indicate that doping is occurring in both phases: doped with Zr Zn. However important differences between rich Zn structures are encountered. While single phase characteristic crystal structure ZnO, multiphase present, then leading to formation interesting luminescence properties, intense emissions near UV visble range, even at room temperature.