Photoluminescence and EPR spectrum of ZnO:Mn nanocrystals
Journal Title: Journal of Physics and Electronics - Year 2018, Vol 26, Issue 1
Abstract
Nanocrystals of ZnO:Mn were obtained by ultrasonic spray pyrolysis and had dimensions of d ~ 36 nm. The changes of photoluminescence end EPR spectra of these nanocrystals in dependence of Mn admixture concentration ( 2–8 at. %) and also at heat treatment in air during 1 hour at T = 850 ̊C were investigated. It is shown that under short-term (7–10 s) nonequilibrium conditions of ZnO:Mn nanocrystals forming, they consist of a nuclens and shell surface, in which, predominantly, the Mn admixture is concentrated. After annealing, the Mn admixture diffuses into the nucleus of a nanocrystal.
Authors and Affiliations
O. V. Kovalenko, M. F. Bulaniy, V. Y. Vorovskiy
Keywords
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- EP ID EP540705
- DOI 10.15421/331811
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