Spontaneous emission mechanisms in strain-free Al1-xIn xN films on GaN templates were studied. They exhibited a large band-gap bowing with a bowing parameter of approximately -3.1eV. The time-resolved photoluminescence (TRPL) signals showed a stretched exponential decay up to 300 K, indicating that the emission was due to the radiative recombination of deeply localized excitons in disordered quantum nanostructures.
ASJC Scopus subject areas
- Physics and Astronomy(all)