Optical properties of magnesium doped AlxGa1−xN (0.61 ≤ x ≤ 0.73)

We investigate the optical properties of AlxGa1–xN:Mg with aluminum content of 0.61 ≤ x ≤ 0.733 in comparison to undoped and silicon doped reference samples. The ordinary dielectric functions, excitation, and emission spectra are reported at different temperatures. A comprehensive analysis yields qu...

Full description

Saved in:
Bibliographic Details
Published inJournal of applied physics Vol. 116; no. 14
Main Authors Feneberg, Martin, Osterburg, Sarah, Romero, María Fátima, Garke Bernd, Goldhahn Rüdiger, Neumann, Maciej D, Esser Norbert, Yan Jianchang, Zeng Jianping, Wang, Junxi, Li, Jinmin
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 14.10.2014
Subjects
Aluminum gallium nitrides
Applied physics
Emission analysis
Emission spectra
Excitation spectra
Magnesium
Optical properties
Ternary alloys
Valence band
Online AccessGet full text

Cover

More Information
Summary:We investigate the optical properties of AlxGa1–xN:Mg with aluminum content of 0.61 ≤ x ≤ 0.733 in comparison to undoped and silicon doped reference samples. The ordinary dielectric functions, excitation, and emission spectra are reported at different temperatures. A comprehensive analysis yields quantitative data on the valence band structure of the ternary alloy, i.e., splitting and order of valence bands with different symmetries. Finally, the near band gap emission in AlGaN:Mg is found to be most probably dominated by donor to free-hole recombination.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4897449