73 citations · 159 across the 3 of their papers we have counts for
3 papers
Excitation efficiency and limitations of the luminescence of Eu3+ ions in GaN
Dolf Timmerman, Brandon Mitchell, Shuhei Ichikawa +3
The excitation efficiency and external luminescence quantum efficiency of trivalent Eu3+ ions doped into gallium nitride (GaN) was studied under optical and electrical excitation.…
Direct bandgap optical transitions in Si nanocrystals
A. A. Prokofiev, A. S. Moskalenko, I. N. Yassievich +5
The effect of quantum confinement on the direct bandgap of spherical Si nanocrystals has been modelled theoretically. We conclude that the energy of the direct bandgap at the -p…
Energy transfer processes in Er-doped SiO2 sensitized with Si nanocrystals
I. Izeddin, D. Timmerman, T. Gregorkiewicz +4
We present a high-resolution photoluminescence study of Er-doped SiO2 sensitized with Si nanocrystals (Si NCs). Emission bands originating from recombination of excitons confined i…