Polarization anisotropy of the photoluminescence of M-plane (In,Ga)N/GaN multiple quantum wells
2003; American Institute of Physics; Volume: 82; Issue: 22 Linguagem: Inglês
10.1063/1.1579563
ISSN1520-8842
AutoresYue Sun, O. Brandt, M. Ramsteiner, H. T. Grahn, K. H. Ploog,
Tópico(s)Ga2O3 and related materials
ResumoWe investigate the polarization anisotropy of the photoluminescence of an M-plane (11̄00) In0.1Ga0.9N/GaN multiple quantum well grown on γ-LiAlO2 (100) by molecular-beam epitaxy. In contrast to C-plane (0001) structures, a strong in-plane optical anisotropy with an energy-dependent polarization degree of up to 96% is observed for this M-plane sample. An apparent spectral shift of the emission with polarization angle is attributed to the impact of exciton localization on the polarization degree. The presence of localized states manifests itself further in the anomalous temperature dependence of the photoluminescence linewidth.
Referência(s)