Author:Kortidis, Ioannis; Swart, HC; Ray, Suprakas S; Motaung, David EDate:Apr 2019This study investigates the room temperature (RT) gas-sensing and ferromagnetic
behavior of p-type materials based on a comparison of NiO, Mn3O4, and CuO
nanostructures prepared using a hydrothermal method. The Mn3O4 nanorods based
sensor ...Read more
Author:Jule, L; Dejene, F; Ali, AG; Roro, Kittessa T; Mwakikunga, Bonex WDate:Jul 2017In 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 ferromagnetic (FM) ...Read more
Author:Motaung, DE; Makgwane, Peter R; Ray, SSDate:Jan 2015We report on the effect of the synthesis reaction-time on the structural, optical, magnetic and sensing properties of ZnO-nanostructures. Electron paramagnetic resonance and photoluminescence analyses reveal that singly ionized oxygen vacancies ...Read more
Author:Gayathri, S; Ghosh, OSN; Sathishkumar, S; Sudhakara, S; Jayaramudu, J; Ray, SS; Viswanath, AKDate:Dec 2015In this report we have demonstrated the synthesis of silver doped and pure ZnO nanoparticles using facile chemical precipitation method. The crystal structure, optical and magnetic properties of the synthesized nanocrystals were determined ...Read more