University of Khartoum

Browsing Staff Publication by Author "Odireleng Martin Ntwaeaborwa"

Browsing Staff Publication by Author "Odireleng Martin Ntwaeaborwa"

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  • Seed Ahmed, Hassan Abdelhalim Abdellhah; Odireleng Martin Ntwaeaborwa; M.A. Gusowski; J.R. Botha; R.E. Kroon (University of Khartoum, )
    Amorphous silica samples doped with 0.1 and 1 mol% of terbium (Tb) were synthesized by the sol–gel method. In addition to the green light associated with 5D4-7FJ transitions of Tb3þ, the sample containing 0.1 mol% also ...
  • Seed Ahmeda, H.A.A.; Yousifa, A.; Swart, H.C.; Kroona, R.E.; W. D. Roos; Odireleng Martin Ntwaeaborwa (University of Khartoum, 2015)
    Thin films of different numbers of SiO2:Tb layers as well as alternating layers of SiO2:Tb and SiO2:Ce were fabricated by the solgel spin coating method in order to study the effect of Ce3+ on the Tb3+ emission. The ...

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