Red luminescence from deformed MgO crystals |
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| Affiliation: | 1. School of Material and Engineering, Central South University, Changsha 410083, PR China;2. Guangdong Institute of New Materials, National Engineering Laboratory for Modern Materials Surface Engineering Technology, The Key Lab of Guangdong for Modern Surface Engineering Technology, Guangzhou 510651, PR China |
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| Abstract: | Annealing of deformed MgO single crystals at temperatures above 400°C causes several changes in the excitation and emission photoluminescence spectra. In particular, an emission band at 695 nm associated with the deformation damage appears at 400°C. Other changes in the temperature range 400–1300°C which show the composite character of the blue emission are described. |
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