Temperature dependence of photoluminescence spectra of bilayer two-dimensional electron gases in LaAlO3/SrTiO3 superlattices: coexistence of Auger recombination and single-carrier trapping
We report emerging photoluminescence (PL) of bilayer two-dimensional electron gases (2DEG) in LaAlO3/SrTiO3 (LAO/STO) systems. A strong blue PL emerges in bilayer-2DEGs in LAO/STO/LAO/STO which doesn’t show in LAO/STO. PL band in bilayer-2DEGs includes both nearly temperature independent Auger recom...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2015-06-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4923320 |