Browsing by Author "Abdub, G. Ali"

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Narrow Visible Emission And Narrowing Band Gap In Ho3+ -Co Doped Y2O3: Eu3+ Nanopowders Prepared Via Sol- Combustion Route.

Abdub, G. Ali; Dejene, Francis B; Swart, Hendrik C. (IOSR Journal of Applied Physics, 2017-12)

Nanocrystalline Eu3+, Ho3+co-doped Y2O3 powders with a maximum size of 9.8 nm were prepared by the sol-combustion process, using Y (NO3).6HO2 as an oxidizer, europium and holonium nitrates as activators, thiourea as a fuel ...
Optical properties of ZnO nanoparticles synthesized by varying the sodium hydroxide to zinc acetate molar ratios using a Sol-Gel process.

Dejene, Francis B.; Abdub, G. Ali; Swart, Hendrik C.; Botha, Reinhardt J.; Roro, Kittesa; Coetsee, Liza; Biggs, Mart M. (Springer, 2016)

Material property dependence on the OH−/Zn2+ molar ratio of the precursor was investigated by varying the amount of NaOH during synthesis of ZnO. It was necessary to control the water content and temperature of the mixture ...