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.

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