Abstract
The change with thermal annealing of the diffuse-reflection and luminescence spectra of electron irradiated polycrystalline zinc oxide was investigated. It was found that the absorption band of F− and F±centers increased at T<543°K and decreased at high temperatures. The change in the parameters of the exciton luminescence bands correlates with the change of absorption in the F− and F±bands. Absorption in the band of interstitial zinc ions decreases over the whole range of annealing temperatures. The effect of thermal annealing on the absorption in the near IR range of the spectrum was investigated. Explanation is given of the regularities established.
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