Browsing School of Pure and Applied Sciences by Author "Dejene, F. B."
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Defect-induced room temperature ferromagnetic properties of the Al-doped and undoped ZnO rod-like nanostructure
Abdub, Ali G.; Leta, Jule; Dejene, F. B.; Kittessa, Roro (Elsevier, 2017)In this work, electron paramagnetic resonance (EPR) experiment on undoped ZnO and Al doped ZnO (AZO) nanoparticles prepared by facile sol–gel method were investigated. The effects of the Al concentration on room temperature ... -
Effect of Mn doping on the structural and optical properties of sol-gel derived ZnO nanoparticles.
Abdub, Guyo Ali; Dejene, F. B.; Swart, H. C. (Springer, 2011)Un-doped and Mn-doped ZnO nanoparticles were successfully synthesized in an ethanolic solution by using a sol-gel method. Material properties of the samples dependence on preparation conditions and Mn concentrations were ... -
The influence of different species of gases on the luminescent and structural properties of pulsed laser-ablated Y2O2S:Eu3+ thin films.
Abdub, Guyo Ali; Dejene, F. B.; Swart, H. C. (Springer., 2016-04)Y2O2S:Eu3+ films have been grown on Si (100) substrates by using a pulsed laser deposition technique. The thin films grown under vacuum, argon and oxygen ambient have been characterized using structural and luminescent ...