Luminescence quenching and the formation of the GaP1−xNx alloy in GaP with increasing nitrogen content

  title={Luminescence quenching and the formation of the GaP1−xNx alloy in GaP with increasing nitrogen content},
  author={James N. Baillargeon and Keh-Yung Y. Cheng and Gloria Emilia Hofler and Paul J. Pearah and Kuang Chien Hsieh},
  journal={Applied Physics Letters},
A study of the luminescence properties of epitaxial GaP containing atomic N grown by molecular beam epitaxy using NH3 and PH3 as the column V sources was conducted. The 77 K photoluminescence spectra of the N‐doped epitaxial GaP showed a continuous redshift, from 5691 A (2.18 eV) to 6600 A (1.88 eV), resulted when the N concentration exceeded ∼5–7×1019 cm−3. This energy shift was found to be consistent with energy gap predictions using the dielectric theory of electronegativity for the GaP1−xNx… 

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