Microwave Synthesis and Study of Morphology, Structure and Luminescent Properties of Zinc Oxide Microstructures
Abstract
The morphology of zinc oxide microstructures obtained by microwave synthesis has been studied and the features of its photoluminescence spectra have been revealed. X-ray diffraction analysis revealed that the synthesised zinc oxide samples have hexagonal crystalline structure. It was found that with increasing power density of excitation radiation in zinc oxide microstructures, band narrowing is observed and the maximum intensity of the photoluminescence spectrum shifts to the long-wave region. It is shown that zinc oxide microcrystalline structures obtained by microwave synthesis have a significant intensity of ultraviolet luminescence bands of free excitons at room temperature and are promising for the creation of short-wave light sources.