• Medientyp: E-Artikel
  • Titel: The impurity size-effect and phonon deformation potentials in wurtzite GaN
  • Beteiligte: Kluth, Elias; Wieneke, Matthias; Bläsing, Jürgen; Witte, Hartmut; Lange, Karsten; Dadgar, Armin; Goldhahn, Rüdiger; Feneberg, Martin
  • Erschienen: IOP Publishing, 2020
  • Erschienen in: Semiconductor Science and Technology, 35 (2020) 9, Seite 095033
  • Sprache: Nicht zu entscheiden
  • DOI: 10.1088/1361-6641/ab9fab
  • ISSN: 0268-1242; 1361-6641
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  • Beschreibung: Abstract Doping induced changes in lattice parameters are investigated experimentally for the shallow donors silicon and germanium in thin-film wurtzite a-plane GaN. Silicon doping results in a lattice contraction while germanium doping results in a small but measurable lattice expansion. By high-resolution x-ray diffraction, we are able to determine the isotropically averaged size-effect with high accuracy. The analysis procedure yields en passant results for the phonon deformation potentials c E 1 ( T O ) and c E 2 h .