Abstract
A wide-field microphotoluminescence study of ordered Gax In1-x P reveals spatially isolated submicron emission centers that emit in a spectral band 20 meV below previously studied PL features. The density of these centers is correlated with the presence of sharp PL lines reported in the low-energy PL band. Polarization analysis shows that many centers are very highly linearly polarized, contrary to models of quantum disks aligned at antiphase boundaries normal to the ordering direction. Orientations of the linearly polarized centers are found in some cases to be highly aligned along specific crystal directions that are not simply related to ordering.
| Original language | American English |
|---|---|
| Article number | 125333 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 80 |
| Issue number | 12 |
| DOIs | |
| State | Published - 29 Sep 2009 |
NREL Publication Number
- NREL/JA-590-45869
Keywords
- basic sciences
- materials science