Photoluminescence of zinc oxide modified by nanopowders |
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| Authors: | M. M. Mikhailov V. V. Neshchimenko Chundong Li Bang-Jiao Ye |
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| Affiliation: | 1.Tomsk State University of Control Systems and Radioelectronics,Tomsk,Russia;2.Amur State University,Blagoveshchensk,Russia;3.Harbin Polytechnic University,Harbin,China;4.University of Science and Technology of China,Hefei,China |
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| Abstract: | The modifying effect of Al2O3, Al2O3 · CeO2, ZrO2, ZrO2 · Y2O3 nanopowders on the photoluminescence spectra of ZnO powder in the 360–660 nm range is investigated. It is found that the introduction of nanoparticles causes a decrease in the ultraviolet band intensity and an increase in the visual spectral band intensity. The change in the intensity of elementary components of the visible range band during modification seems to be explained by the emergence of oxygen and zinc vacancies (V O+ and V Zn−) and interstitial oxygen ions (O i −). |
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