Optical excitation and external photoluminescence quantum efficiency of Eu3+ in GaN

Open Access
Authors
Publication date 2014
Journal Scientific Reports
Article number 5235
Volume | Issue number 4
Number of pages 5
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
Abstract We investigate photoluminescence of Eu-related emission in a GaN host consisting of thin layers grown by organometallic vapor-phase epitaxy. By comparing it with a reference sample of Eu-doped Y2O3, we find that the fraction of Eu3+ ions that can emit light upon optical excitation is of the order of 1%. We also measure the quantum yield of the Eu-related photoluminescence and find this to reach (~10%) and (~3%) under continuous wave and pulsed excitation, respectively.
Document type Article
Language English
Published at https://doi.org/10.1038/srep05235
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